Rosemary walks each week for exercise. let d represent the distance walked and h represent
the number of hours spent walking.
last week: walked 18 miles in 6 hours
this week: d = 2.5h
which statement must be true?
this week, rosemary walked a greater distance,
last week, rosemary walked at a faster pace.
last week, rosemary walked a greater distance.
this week, rosemary walked at a faster pace.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Simplify. 4+3/7x-2-2/7x a. 2-5/7x b. 6-1/7x c. 2+1/7x d. 6+5/7x

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the