What is the solution to this system of linear equations?
x + y = 4
x - y = 6
(4,6)
(6,4)
(5, -1)

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

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.

What is 1.5% of 120 or what number is 1.5% of 120