Activity 1: "Tart of a Whole" A Add the following fractions: 1. 3 + 2
4 4

2.5 + 7
7 8

3.1 + 3
2-- 3--
9 8

4. 6 + 2
5-- 7--
7 7

5. 1 + 5
4-- + 5--
8 8​

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

What is not true about kl and mn? what is mn? (show )

Which expression do you get when you eliminate the negative exponents of 4a^2 b^216a^-3 b