Can someone please help me??

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Solve the equation by completing the square. x^2+2x=17

Raymond just got done jumping at super bounce trampoline center. the total cost of his session was $43.25 . he had to pay a $7 entrance fee and $1.25 for every minute he was on the trampoline. write an equation to determine the number of minutes (t) that raymond was on the trampoline.