Chen's friend Alisa can ride 2 miles in 7 minutes. How long would it take for Alisa to ride 10 miles at the same rate? and i need a diagram.

To get to work, Santa jogs 3 km to the train and then rides the remaining 5 km. If the train goes 40 km per hour faster than Santa's constant rate of jogging and the entire trip takes 30 minutes, how fast does Santa jog?

When Josh and Sean were each 5 years old, Josh was 1.5 inches taller than Sean. Josh grew at an average rate of 2.75 inches per year from the time that he was 5 years old until the time he was 13 years old. Josh was 63 inches tall when he was 13 years old. How tall was Sean when he was 5 years old

A kayaker paddled 5 km upstream against the current then turned around and travelled 8 km downstream with the current. If the speed of the current was 1 km/hr and the upstream trip took 60 minutes longer, what was the speed of the kayaker without the speed of the current?

You can design a Web site in 15 hours. Your friend can design the same site in 10 hours. How long will it take to design the Web site if you both work together?

The distance that Brad travels varies directly with the time spent traveling. Brad traveled 660 miles in 12 hours How many miles could Brad travel in 4 hours?