An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $3750 and his stock in Company B was worth $1860.
The stock in Company A has decreased 24% since last year and the stock in Company
B has decreased 20%. What was the total percentage decrease in the investor's stock
account? Round your answer to the nearest tenth (if necessary).

1. 34

2. 268

3. x=14.4

step-by-step explanation:

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

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.