If x + y = 13 and 2y = 16, what is the value of x?

Ok so I already solved this I just need to see if I got it right Simplify the expression 6t+3 (1-2t) - 5

You invest $2,800 in an account that pays an interest rate of 5.5%, compounded continuously.

Michael just finished a great meal in a restaurant in Wisconsin. The sales tax in Wisconsin is 5%, percent, and it is customary to leave a tip of 15%, percent for the waiter.

A circle with radius of 3cm sits inside a 8 cm x 7cm rectangle what is the area of the shaded region?

Different ways to make 25,302

If 4/3x - 1/2 = 0 then x=

All of the students in Ms. Osbourne's class like pizza. Jeff is a student who likes pizza. Therefore, Jeff is a student in Ms. Osbourne's class.

Willie sold 72 fishing lures to the Bait Shop this month. He sold 4 times as many lures to the Bait Shop as to his friends. Let f represent the number of lures he sold to his friends.

How many solutions will there be to the following equation?16x^2=100

What is the range of the function y=/cos 2x?