Answer:
120
Step-by-step explanation:
0.12 × 1000 = 120
___
The amount of commission is the product of the commission rate and the amount on which commission is paid.
Answer:
4.8
Step-by-step explanation:
Um, I'm not sure how to explain, but watch a khan academy video on it
Answer:
31/5
Step-by-step explanation:
[f(4) - f(-1)] / 4-(-1)
Answer: 15
Step-by-step explanation:
4/20 is your ratio. Simplify it and it'd be 1/5. This means in 1 mile has been walked in 5 minutes. 3 x 5 is 15, so it took Susan 15 minutes.