Choose the equivalent expression. 0.6x -4.8 + 3x -1.2x + 8.4 A. 1.2(2x + 3)
B. -0.6x + 4.8
C. 1.2(4x + 3)
D. 3x + 3.6

2.4x+3.6

Step-by-step explanation:

0.6x−4.8+3x−1.2x+8.4

=0.6x+−4.8+3x+−1.2x+8.4

Combine Like Terms:

=0.6x+−4.8+3x+−1.2x+8.4

=(0.6x+3x+−1.2x)+(−4.8+8.4)

=2.4x+3.6

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

answer: sensy

step-by-step explanation: