Answer:
t ≥ 18
Step-by-step explanation:
He has run 12 miles plus some more miles t. He need to run at least 30 miles
12+t ≥ 30
Subtract 12 from each side
12+t-12 ≥ 30-12
t ≥ 18
Answer: A
Step-by-step explanation:
Letting
,

Also, the domain of an inverse is the same as the range of the original function, so the range is 
4(9+7-9)
the nines cancel
4*7 =28
200 divided by 30 equals 6.66 dishes per minute. It would take 37.55 minutes to do 250 dishes.
Answer:
105
Step-by-step explanation:
I am guess this prism is a rectangle
So 3 times 7 times 5 is 105
Thus the answer is 105
Hope this helps!