Kate borrowed $400 from her friend. she will repay this amount plus 3 percent simple interest after one year. what is the total amount she will pay her friend? $401.20 $412.00 $400.12

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

The lengths of the two sides of a right triangle are 5 inches and 8 inches what is the difference the possible lengths of the third side of the triangle