Nicole bought a meal in a town that has no sales tax. She tips 20%. Select all meals Nicole could buy, including tip, for $15 or less. CAN SOMEONE PLEASE TELL ME THE ANSWER?!?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Which expression is the factorization of x^2+10+21

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13