collin is a math tutor. he charges the same amount, s, for every tutoring session. after 21 sessions he has earned $1575. how much does collin charge for one tutoring session?

Change 8/10 to hundredths

John and his friends are dining at a restaurant. The bill comes to $334.43. John tips the waiter 16.5% of the total bill amount. He estimates that the total amount they need to pay is about $390. Is this a reasonable estimate?

Write a system of linear equations that has the order pair as its solution (-6,-2)

At 10:05 a. m., there are 2 microscopic bacteria cells in the bottle. At 10:15 a. m., there are 8 cells in the bottle. At what time will there be 16 cells in the bottle? At what time will there be 64 cells in the bottle?

1) 5x - 4x + 15x + 10

Jim has 4 New York quarters, 3 Pennsylvania quarters, and 3 Virginia quarters in his pocket. What is the probability that he will get a Pennsylvania quarter followed by a Virginia quarter when he pulls two quarters out of his pocket?

Delia worked 45 minutes on her oil painting. She took a break at 10:35 a. m. At what time did Delia start working on her painting

Express 962 in standard form

A plane travels 395000 meters in 9000 seconds, what is the speed?

What is the importance of never giving up