Calculate the interest and the total amount. (2.8)
a) a loan of $1750 at 4.8% per year over
five years
b) an investment of $1500 at 3% per year
over three years

.

Step-by-step explanation:

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.