There were 50 students in the chess club. the membership went up by 10%. how many more students joined the club?

Tony is charged $ 50 and additional $0.15 per miles for renting a car. a) represent the cost of renting a car with an equation,and the determine the cost if he drove it70 miles.b) what would be the cost of a car rental if the car was driven 250 miles? show work

Twice the sum of a number and 2 is equal to three times the difference of the number and 8. find the number.

Given the equation −4  = 12, solve for x and identify if it is an extraneous solution.