Matt received change totaling 1.85 in nickels, dimes, and quarters. He recieved at least one coin of each type. What is the least number of coins he could of recieved

Which expression is equivalent to (3^2)^-2 a.-81 b.-12 c.1/81 d.1/12

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

Janet is rolling a number cube with the numbers one through six she record the numbers after each row if she rolls of keep 48 times how many times should she expect to roll a 4