Omg please I really need help in this please can you help me and don’t just answer for free points thanks. Also, please be sure to show your work as to how u got the answer.
Thanks.

Step-by-step explanation:

10+10+7+8= it's 55

Step-by-step explanation:

Because you just half the 20 and 15 and add it all up

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

126.66 m²

step-by-step explanation:

the pertinent area formula is a = πr², where r is the radius.

here, a = π(6.35 m)² = 40.32π, or approximately 126.66 m²