Asquare has a side lengths of 9, use the pythagorean theorem to find the length of the diagonal

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

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

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5