About 8.73 x 10^9 people in the world speak Chinese. About 3.22 x 10^7 speak Spanish. In scientific notation, how many more people speak Chinese than Spanish?

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2