2 times x equals 360 find x

8w = 64 using mental math

In 2-d cartesian coordinates, a vector with magnitude 20 forms a 30 degree angle above the positive x-axis. for reference, the negative y-axis represents a 3/2π radian angle from the positive x-axis in this coordinate system.

Find the 9th term in the arithmetic sequence: 6, 2, - 2, ...

1. Which ratios form a proportion? a. 4/9, 12 / 25 b. 3 / 7, 18 / 42 c. 5/11, 20/45 d. 5/8, 15/25. 2. Which ratio forms a proportion with 18 over 30? a. 20 / 35 b. 50 / 90 c. 36 / 48 d. 60 / 100. 3.

In a shop there are 20 customers, 10 of whom will make a purchase. if three customers are selected, one at a time, at random, what is the probability that all will make a purchase?

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.