10 years ago, Rapunzel had 19 centimeters of hair, now her hair is 20,193 centimeters long, how long has her hair grown? in scientific notation-

1) 1*10^3

2) 2*10^3

3) 1*10^5

4) 2*10^5

A penny is 19 millimeters wide. What is the area of the face of the coin? Round to the nearest hundredth. (Use 3.14 for pi.)

What is the factorization of x²+8x+7? A. (x²+x) (x+7) B. (x²) (x+7) C. (x) (x+7) ² + (x) (x+7) D. (x+1) (x+7)

The price of one share of abc campany declined a total of 45.75 in 5 days. what was the Average change of the price of one share per day?

Simplify - 3/7 (y-28) - 1/21y

What are the partial products for 28 times 15

X/8=8/18 what does x eaqual

What's the volume of a sink customary unit

Elmer deposited $2250 into a savings account that pays annual simple interest at the end of seven years he earned $157.50 in interest what is the interest rate on a savings account round to the nearest 10th of a percent

The ratios of the number of red marbles to the number of green marbles in a bag is 2:3. The ratio of the number of green marbles to the number of blue marbles is 9:4. There are 76 marbles in the bag. Find the number of red marbles in the bag?

What is 24 (a-41) + 65 - 14