PLEASE HELPPP!! Emily collects and trades rocks. She starts with 8x^2 rocks, for some number x, and then buys 7x^4. She then trades away x^5, then gives away 9x, and finally sells another 5 rocks. Write an expression for the number of rocks Emily now has in standard form. A. −9x + 8x^2 + 7x^4 − 5 − x^5

B. 8x^2 − 5 + 7x^4 − 9x − x^5

C. −x^5 + 7x^4 + 8x^2 − 9x − 5

D. −5 − 9x + 8x^2 + 7x^4 − x^5

Jordan has $5.37, which he is using to buy ingredients to make salsa. he is buying one red pepper for $1.29 and three pounds of tomatoes. if jordan has exactly the right amount of money he needs, what is the price per pound of the tomatoes? choose the correct equation to represent this real-world problem. solve the equation and verify the reasonableness of your answer. a pound of tomatoes costs .

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

The ratios of boys to girls on a soccer league is 2: 5. if there are 28 boys, how many girls are playing soccer? extra points! will mark as brainiest asap