Simplify to create an equivalent expression. −5(1−5k)−4(2k+5)\qquad{-5(1-5k)-4(2 k+5)}−5(1−5k)−4(2k+5)

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a.m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?

When george started his current job, his employer told him that at the end of the first year, he would receive two vacation days. after each year worked, his number of vacation days will double up to five work weeks (25days) of payed vacation. how many vacation days will he have in 4 years