Or her comic books and then bought 8 more. She now has 13. How many did she begin with?

39 is 25% of a number, what is that number?

Two cities are 210 km apart. A train traveled this distance in 42 3 hours and then made the return trip at a speed of 502 5 km/h. How many times greater (or less) was the train's speed on the return trip?

Person with best answer gets Brainliest Tell me as much as you can about Interquartile range

Reiko takes 2 coins at random from the 3 quarters, 5 dimes, and 2 nickels in her pocket. three coins are tossed. what is the probability of 2 heads and 1 tail? what is the probability that she chooses a quarter followed by a dime?

Write the following comparisons as a ratio reduced to lowest terms. 84 hours to 6 days

Before school, Janine spends 1/10 hour making her bed, 1/5 hour getting dress, and 1/2 hour eating breakfast. What fraction of an hour does she spend doing these activities?

Based on past records, a salesperson has a 15% chance of closing a sale with new customers. How many sales can the salesperson expect with his next 5 customers? A. 0.75 B. 1.55 C. 3.5 D. 4.25

Jimmie invested $27,500 at 6.27% compounded continuously. What will Jimmie's account balance be in 50 years?

The area of a cross section at station 4+50 is 10.31 sq. in., and at station 5+00 is 14.18 sq. in. The horizontal scale of the cross section is 1" = 40' and the vertical scale is 1" = 10'.

Calculate the inverse of the matrix and find the values for a, b, c, and d: A=[4 12 1 10] A-^1=[a/14 b/7 c/28 d/7]