In a lab a substance was cooled by 42c over a 7 hours at a constant rate. what was the change in temperature each hour?

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Campus rentals rents 2 and 3 bedrooms apartments for $700 ans $900 a month respectively. last month they had six vacant apartments and reported $4600 in lost rent. how many of each type of apartment were vacant?

Solve: 25 points find the fifth term of an increasing geometric progression if the first term is equal to 7−3 √5 and each term (starting with the second) is equal to the difference of the term following it and the term preceding it.