Evaluate the given algebraic expression for x = 7 and y = 3.
2x + 2y
a. 10
b. 20
c. 23
d. 15

B. 20

Step-by-step explanation:

x = 7 and y = 3.

2x = 2y becomes 2(7) + 2(3).

2 times 7 is 14, and 2 times 3 is 6.

2(7) + 2(3) becomes 14 + 6.

14 + 6 = 20, therefore B is the correct answer.

it depends on the weather. because i have flown to seattle when it was pouring down rain and there was one time i flew to ohio when it was snowing hard. whats your situation.

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.