Awasher and dryer cost $992 combined. the washer costs $42 more than the dryer. what is the cost of the dryer?

What does x = in this equation x+3+2x=x+5

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?