Ineed some asap !
find x and the measure of the indicated parts
a) x=8, as=8
b) x=8, as=10
c) x=12.5, as=12.5
d) x=2, as=2

42.4

step-by-step explanation:

convert to decimal

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.

the surface area is 124cm²

step-by-step explanation:

length: 4cm

width: 9cm

height:   2cm