The top question is B. 30, because you have to set 7y-30 equal to 4y+60 since both lengths are the same.
Only the third one makes x=-1 true
Answer:
Step-by-step explanation:
One number is 2 more than 3 times another. Their sum is 14.Find the numbers. 8, 14 5, 17 2, 20 4, 18 10, 12
M^2 = 49
M^2 = 7^2
M = -7 and M = 7
Answer:
107
Step-by-step explanation:
