If i buy a computer for 36 dollars with a coupon for 25% off. how much would it have cost without the coupon?

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

Over which interval is the graph of f(x) = x2 + 5x + 6 increasing?