We need to see the exercise before that or we cant solve it!
The answer is b:
First change the operation to multiplication, and then change the last fraction to it's reciprocal (7/15 / 5/3)
Then, you can simplify 15 and 5 to 3 and 1 (divide each by 3)
Finally u multiply (7*1 / 3*3)
Sorry if its bad first time
Answer:
h = 
Step-by-step explanation:
Given
V = πr²h
Isolate h by dividing both sides by πr²
h =
→ C
19x60=1140
19 containers of resin with 60 ml of hardener each so the total is 1140 ml of hardener.