How many even 2-digit numbers have an odd number as the sum of their digits?

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

Line wx is parallel to line yz. if m

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer