A choir teacher is dividing 3 sopranos and 12 altos into singing groups. he wants each group to have the same combination of sopranos and altos, with no singers left over. what is the greatest number of groups he can make?

A-15=4a-3a solve for a

When mr. crain was driving to work in the morning, there was heavy traffic, so he was travelling at a speed of 25 mph. when he was coming back after work there was no traffic, so he drove at a speed of 45 mph. find the distance between mr.

Two numbers have the same digit in the millions period, the same digits in the thousands period, and the same digits in the ones period. Do these numbers have the same value

Write the first five terms of a numerical pattern that begins with 2 and then adds 2.

Identify the set of numbers that makes up the domain in the relation { (-2, - 2), (0, 2), (2, 4), (3, - 6) }. -6, - 2, 2, 4 -6, - 2, 0, 2, 3, 4 -2, 0, 3, 4 -2, 0, 2, 3

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.