Suppose you start a lawn-mowing business and make a profit of $400 in

the first year. each year, your profit increases 5%.

a. write a function that models your annual profit.

b. if you continue your business for 10 yr, what will your total profit be?

18

step-by-step explanation:

ik this stuph and i am smart donkey

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.

ok thats very interesting

time is equal to distance over rate so

t = d/r

need a little bit more information for the second question.