Answer:

Step-by-step explanation:
Let
x ----> the length of Zach's car
y ----> the length of Ginny's car
we know that
The sum of the lengths of both cars is 30 inches
so
----> equation A
Ginny's car is 2 more than 3 times the length of Zach's car
so
----> equation B
substitute equation B in equation A

your answer is a ok i hope this helpful
Answer:
D
Step-by-step explanation:
Multiply the circumference by the diameter which is D
Answer:
what is the question
Step-by-step explanation: