Which shows the expression below simplified?

(7 * 10-7) * 0.06

A. 1.3 * 1014

B. 4.2 * 10-9

C. 4.2 * 1014

D. 4.2 * 10-8

Six Flags Amusement Park has found that 3/5 of its customers ride the Colossus roller coaster. Of these, 1/4 ride it again. What fraction of the customers ride the roller coaster twice? a 4/9 b 3/20 c 4/20 d 3-1/4

What is2+2x45+6-7 i cant figure it out

All I really need is a formula on how to solve the question and a explanation on how its solved. 8 x + 13 y = 2 y = x - 2 Solve the system of equations

If a rectangle measures 15 inches by 1 3/4 feet, what is the perimeter in yards? What is the area in square feet? Rounded to the nearest tenth

There was 2/3 of a pizza for 6 friends to share equally. What fraction of the pizza did each person get?

At the city museum, child admission is $5.90 and adult admission is $9.60. On Thursday, 131 tickets were sold for a total sales of $1050.40. How many child tickets were sold that day?

How do you prove a rectangle in geometry?

Solve for the roots in the following equation. Hint: Factor both quadratic expressions. (x4 + 5x2-36) (2x2 + 9x-5) = 0 x=

Find the least common denominator of the following pair of fractions: 7/8 1/2 a. 16 b. 8 c. 24 d. 2 can someone explain?

An earthquake produces 10 waves in 6 seconds. What is the period of the wave in seconds?