Express 80 miles per hour in kilometers per hour

G(x) 16g(x) = 2 sin(2x - π) + 4. using complete sentences, explain how to find the minimum value for the function.

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?