Solve
10p-3=2(12+4p)-7

p=10

Step-by-step explanation:

10p - 3 = 2(12+4p) - 7

10p - 3 = 24 +8p-7

10p - 3 = 17 + 8p

Move variable to the left-hand side and change its sign

10p - 8p - 3 = 17  10p - 8p = 17 + 3

2p + 17 +3     2p=20

           p=10

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.

1.) 21

2.) 0.453

3.) 1.5

4.) 48

5.) $ 22

step-by-step explanation: