To find his age 4 years ago, you need to subtract 4 from his current age.
His current age is Y, so his age 4 years ago is: y - 4
Answer:
Step-by-step explanation:
Z = 20
3 x 20 = 60
60 - 12 = 48
Answer: C 5mph
Hope this helps!!
19x
product means multiply
19*x
