Answer:
Step-by-step explanation:
The interior angles of a heptagon add up to 5*180 = 900
So
x + 143 + 116 + 135 + 135 + 116 + 155 = 900 Add up the known angles
x + 800 = 900 Subtract 800 from both sides
x + 800 - 800 = 900 - 800 Combine
x = 100
45 ?
15 ÷ 2 . X =
There's the expression
Yea u have to do that the most effective is the 10 bc penny is right
Combine like variables:
(20x^2)(2y^3)
Combine coefficients:
40(x^2)(y^3)
