Let x be a number.

The sum of thirteen and twice a number

Jamal was riding his bike home at a speed of 12 mph. On his trip out, he had traveled 8 miles away from his house. He has been traveling for a half hour at this speed. How far away is from his home?

Michael is competing in the long jump event. When he approaches the long jump pit, he jumps with an initial vertical velocity of 40 ft/s. How long is Michael in the air? A. 2 s B. 2.5 s C. 3 s D. 3.5 s

Use the elimination method to solve the system of equations. choose the correct ordered pair 2y+2x=8

Nicole has a bag of round buttons. She measured the diameter of each button to the nearest eighth of an inch

A rectangle has a perimeter of 14 inches. what is the largest possible area of the rectangle?

The area of a trapezium shaped field is 480m^2, the distance between two parallel Sides 15 m and one of the parallel sides is 20m. Find the other parallel side I will mark as brain lies

Chemists measure the acidity of an aqueous solution using pH. The pH is pH=-log-10[H^+] where pH is a measure of hydrogen ion concentration [H^+] measured in moles of hydrogen per liter of a solution. Find the pH of a solution if [H^+]=5.5x10^-12.

I think of a number, multiply it by 2, subtract 5 and multiply the result by 3 Write it as a algebraic question and any number being x

Whats the area of 18 inches 24 inches and 26 inches

In how many ways can you choose a committee of 7 from a total of 20 people?