How do i do this?? i really need help !!

If 20% of a number is 35, what is 50% of that number?

In a timed typing test lara typed 63 words per minute. estimate the number of words she should be able to type in half in hour show your work

Paco orders an ice cream for $1, but realizes his wallet is at home and he only has 3/20 of $1 with him. if his mom pays the remaining 7/20 of the dollar, how much will she pay? $0.05 $0.15 $0.85 $0.95