10. Carl is constructing a shelf using boards and sheets of plywood. He has $100 to spend. The sheets of plywood cost $10 each and the boards cost $7.50 each. Write an equation that represents the
cost where the variable for the plywood is isolated.
13 marks

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?