How would I write algebraically "twice a number is at least 15"

Solve the system by substitution 5x+3y=8 3x+y=8

If m 4 = 25 then what is m 8 105 75 175 25

Jan and two of her friends raised money by having a bake sale. They split the proceeds. If each person received $32.19, how much money did the girls earn in total at their bake sale? Write an equation and solve it to find the answer. $10.73 $29.

Rearrange this equation to isolate c A=b (1/c-1/d)

A driver averaged 56 miles per hour and took 15 hours to travel between two cities. What is the distance between the two cities? The distance between the two cities is ___ miles.

Explain why the diagram shows that 6 (3 + 4) = 6.3 + 6.4.

A swimming pool has an area of 40 square meters. It's length is 8 meters. What is the width?

If you save $4,500 at an interest rate of 13 percent per year, how much will you have at the end of seven years?

Many performances at a circus take place in a circular ring. One circus has a ring with a diameter of 300 feet. Find the circumference of the circle.

Convert fraction to decimal 3.20