For the following system is the 2nd equation to make substitution for y in the first equation 2x+y=6 y=3x+4

Beth took out a $20,000 loan for college she is borrowing money from two banks. bank a charges an interest rate of 8.5% bank b charges and interest rate of 10.5% after one year alice owes $1860 in interest how much money did she borrow from bank a

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y