Can someone help pleasee

Solve for x -2.3(r - 1.2 ) = -9.66 enter you answer as decimal.

What are the sotions to the quadratic equation 9x^2=4

Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36