A. (−13)+(−7)= b. (−15)− (−15)= c. (2)∙ (−13)= d. (−44)÷ (11)= e. (−3)+(−5)+(8) +(25)= f. 3+4=4

See answer below

Step-by-step explanation:

In this case, this is just sum, substraction and divisions using the properties or the signus. This is just basic operations using the negative and positive numbers.

To do this easily you just have to remember the following:

1. Numbers with same sign, must be summed and put the sign that have either number.

2. Numbers with different sign, must be substracted and then put the sign of the highest number.

3. If you have a multiplication or division:

- Same signs multiplied or dividied (Either positive or negative), result always positive.

- Different signs multiplied or dividied (positive and negative), result always negative.

Following this simple rules, you'll be able to solve almost any exercise of this.

Now, according to the rules above, let's solve the exercises:

A. (-13) + (-7)

In this case, you have two negative numbers, and one positive sign between them. Apply the 3rd rule. The negative sign remains and then:

-13 - 7

Now 1st rule applied, sum the numbers and let the same sign:

-13 - 7 = -20.

B. (-15) - (-15) = 0.

Applying 3rd rule and then 2nd rule, we have a subtration of -15 + 15.

C. (2) * (-13) = -26

Applying the 3rd rule, we have positive and negative, result always negative.

D. (-44) / 11 = -4

3rd rule applied.

E. (-3) + (-5) + 8 + 25 = 31

Applied 3rd and 1st rule.

I don't understand the f, but you can use the rules here and get the final answer of that one.

Hope this helps

in the attachment.   i didn't see your choices.   the word which means there is choices.

step-by-step explanation:

(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

required rate of return = 0.166 = 16.6%

step-by-step explanation:

under the capital asset pricing model (capm), the required or expected rate of return for a particular security or asset is given using the formula:

required rate of return = risk-free rate + beta*(market risk premium)

we are given that;

risk-free rate = 4% = 0.04

beta = 1.4

market risk premium = 9% = 0.09

we simply plug these values into the above formula;

required rate of return = 0.04 + 1.4*(0.09)

required rate of return = 0.04 + 0.126

required rate of return = 0.166 = 16.6%