Juan multiplied 4*304 to get 1,216. Use estimation to check the reasonableness of Juan's answer.

7. Triangle RST has sides RS = 5.5 cm, RT = 3.9 cm, and ST = 4.8 cm. The value of the largest angle in this triangle has a value of A. 43.8 B. 58.5° C. 77.7 ° D. 79.3

Lori tosses a quarter and rolls a die. What is the Probability that it is a heads and 2, or 4? Also Susan tosses a penny and rolls a die. What is the probability that it is tails and not 3

You survey 320 students. 40 students' favorite sport is soccer. About how many students' favorite sport is football at a school of 1,600 students.

Ben's car gets between 18 and 21 miles per gallon of gas. If his car's tank holds 15 gallons, what is the range of distance that Ben can drive on one tank of gas?

Five less than number x is three more than three times a number x. Solve for x

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.