How to solve a circle of a radius of 12

How do you solve the formula for d=rt for t

If X=3, What is the area of a triangle with sides, 6x, 7x, and 21x? A. 117 in² B. 378 in² C. 189 in² D. 58.5 in²

The freshman class has 160 students. Each freshman must write 3 reports from a list of 10 novels that the teacher has assigned them to read. How many different combinations of novels can a freshman student choose to write reports on?

List the terms in the expression 19cd+6d+8

Justin drove at a steady speed of 60 miles/hour. Write an equation to represent the relationship between the total distance Justin drove, 'd', in a certain amount of time, 't'.

A floor mat is in the shape of a parallelogram. The mat hasan area of 480 square inches. if the base of the base of the mat is 24 inches, what is the height of the mat?

Y=2x-5 write in y=mx+b form

What is the area of this triangle 8in 10in 6in

1 1/12 will be greater than, less than, or equal to 1 5/8?

Solve the equation. 7x=18.