Which mental math strategy can be used to find the exact sum of 873 and 47? Check all that apply?

800 + 70 + 47

870 + 40 + 3 + 7

873 + 40 + 7

873 + 40 + 3 + 7

880 + 70 + 7

A sweater is on sale for 40 percent off its original price of $29.95. What is the amount of savings?

a culture of bacteria triples by the end of every hour. if there were initially 40m bacteria in a culture, how many bacteria should there be after 3 hours

On Saturday, Jack spend one hour 58 minutes working in the yard. If he spent a total of five hours 25 minutes on the yard where is his weekend how long did Jack work in the yard on Sunday? A. 7h 23min B. 4h 33min C. 3h 27min D. 3h 23min

Cotton said that she had to work 3 days to get $400! If Gabriella had to work for $3,000 how many days would she have to work?

15°c hotter than temp x

What is the slope of the line represented by the equation 2x + 3y = - 12? A. - 3/2 B. - 2/3 C. 2/3 D. 3/2

What is the correct answer for : - 1/5 (x-25) = 7

runs 5 laps in 30 minutes, denise runs 4 laps in 20 minutes, paola runs 6 laps in 40 minutes. if they run at a constant rate, who is the fastest runner?

Megan has 7 coins that make one pound. The coins are of only two different kinds. What are the 7 coins?

Solve by factoring x squared-30=7x