Jamal(j) and Mackenzie (m) are brother & sister. Jamal(j) is 4 years older than Mackenzie(m). If Jamal (j)is 16 years old, write & solve an equation to find Mackenzie’s (m) age. Please use the letters to set up & help solve your problem. Must see work.

WILL GIVE BRAINLIEST TO THE 2 PERSON

12 years

Step-by-step explanation:

j = m + 4

j = 16

16 = m + 4

m = 16 - 4

m = 12

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