The sum of two integers is 66. The larger is 12 less than five times the smaller. Find the two integers

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

How many solutions does the nonlinear system of equations graphed bellow have?