If 45 cookies will serve 15 students, how many cookies are needed for 30 students?

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

What is the order of these fractions from least to greatest 2/3 7/10 5/8 65/100

What is y times x by? y is __ times x