Penny, Amjit and James share some money in the ratio 3:6:4 Amjit gets $28 more than James.
Work out the amount of money that Penny gets.

please help

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

9/10 divide by -3/15 as a mixed number

At the electronics store you have a coupon for 20% off up to 2 cds you buy for cds with the original cost of $10.99 each the sales tax is 5% what is the total cost of your purchase