Find the value of

3y when y = - 7

If a telephone pole is 25 feet tall, and a support wire connected to the top of the pole hits the ground at a 55-degree angle, how long is the support wire?

A class of 196 sgudents went on a field trip they took 7 vehicles some cars some buses find the number of cars nd buses they took each car held 5 students and each bus held 45 students

91 boxes of apples hold a total of 2,605. Assuming each box has about the same number of apples, estimate of apples in each box.

From a batch of 13 students who had appeared in an examination, 4 students were failed. The marks of passed students were 43, 57, 45, 61, 75, 64,53,50 and 40. Calculate median marks of all students.

What is the value of x in the equation 1/5 x - 2/3 y = 30 when y=15

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.