What number should be the exponent on the 10 so that the two numbers are equivalent? 75.6 · 10y = 0.00756

We just started the introduction into circles and i have no idea how to do this.

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3