Sienna wants to set up a special fund so she can save to buy presents for her friends and family throughout the year. if her gift purchases last year totalled $580, estimate how much she should save each month to have approximately the same amount available for gifts next year? a. approximately $480 b. approximately $58 .c. approximately $48 d. approximately $96

overpriced

step-by-step explanation:

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.