What does the number 1.99x 10 to the power of 30 mean?

How do i solve 1+1x+3

Solve following x-y=2 5x+3y=18

How many 20 inch bike wheel rotations does each tire make after traveling 600 feet?

A 1300 kg car moving at 5.2 m/s is initially traveling north in the positive y direction. After completing a 90° right-hand turn to the positive x direction in 4.4 s, the inattentive operator drives into a tree, which stops the car in 350 ms.

WHO KNOWS THIS? Which operations are the most efficient to use to solve this problem? The grocer bought 154 pounds of beef at $5.00 per pound. The grocer also bought 243 pounds of ground turkey for $729.

A circle with area 25 pi has a sector with a central angle of 9/10 pi radians what is the area of the sector

How do you put 20/80 in simplest form

What is the equation of the line that goes through (3,4) and (9,-2) ? Use slope-intercept form.

The weight of a body varies inversely as the square of its distance from the center of the earth. If the radius of the earth is 3500 miles, how much would a 180-pound man weigh 750 miles above the surface of the earth?

Scientists are comparing two planets to determine the difference in size. The scientists are using exponential notation to save space in their calculations. They know that planet Delta is 57 cubic meters, and that planet Epsilon is 53 cubic meters.