Olivia bought a notebook for $12.50 and 9 pens. If her total was $43.73, how much was each pen?
Help quick pls

$3.47

the cost of each pen is $3.47

Step-by-step explanation:

subtract the price of notebook from total price

43.73 - 12.50

= 31.23

divide total from number of pens

31.23 / 9

= 3.47

2 x^2 -3x+p

sum of roots = 3/2

let other root be x

3+ x = 3/2

x= 3/2 - 3 = -3/2

product of roots = p/2

3× -3/2 = p/2

-9 = p

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answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.