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 ?

Agrain trader buys the following amounts from three suppliers: 3,200 pounds, 5,100 pounds and 700 pounds. what is the total weight of his purchase?

If the car had not hit the fence, how much farther would it have skidded? solve the skid-distance formula to find the extra distance that the car would have traveled if it had not hit the fence. round your answer to two decimal places. note that unit conversion is built into the skid distance formula, so no unit conversions are needed.

Solve the system of equations. x=-2y+1 and x+2y=9. show work