Answer:
a + 20 = 7*12 (multiplied both sides by 12)
a + 20 = 84 (calculated 7*12)
a = 84 - 20 (subtracted 20 on both sides)
a = 64 (calculated 84-20)
Answer:
h - 18 = 67
Step-by-step explanation:
If h is her height, then her height minus 18 is 67, or h - 18 = 67
Answer:
36girls
Step-by-step explanation:
3/1*12=36. To check 36/12=3/1=3:1
Rate of change is slope
So change in y/change in x
150/3=50