8. John invested $12,000 in a business on January 1 and an additional $2400 on April 1. He withdraws $1440 in June 1 and invested $2880 on October 1. What was John’s average monthly investment balance for the year?

Complete the table for different values of x in the polynomial expression -7x2 + 32x + 240. then, determine the optimal price that the taco truck should sell its tacos for. assume whole dollar amounts for the tacos.

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

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3