HELP ASAP IM SO PUZZLED

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.