How many solutions does 3x+-20=4 (0.5x-5) have

You are riding your bike. It takes you 21 minutes to go 5 miles. If you continue traveling at the same rate, how long will it take you to go 12 miles?

The angle of depression from the top of a 120 m high vertical cliff to a boat B is 16 degree. Find how far the boat is from the base of the cliff.

The equation below describes a circle. What are the coordinates of the center of the circle? (x - 6) 2 + (y + 5) 2 = 152A. (-6, 5) B. (6, 5) C. (-6, - 5) D. (6, - 5)

660 yards = how many miles?

Serena is the manager of the coffee shop. Jordan an employee earns $16.50 per hour. The amount of money Serena earns is represented by the equation m = 21 h, where "h" is the number of hours Serena works and "m" is the amount of money she warns.

Is this true or false 276 times 13 = 276 times 7 + 276 times 6 = 1,932 + 1,656 and why?

1. Yousaf deposits $5000 in a savings account at his local bank. The account pays 5.5 % interest compounded annually. At the end of 6 years, how much will he have in his account?

A researcher measures 200 counts per minute coming from a radioactive source at noon. At 3:00pm, she finds that this has dropped to 25 counts per minute. What percentage of the original source will remain at 6:00pm?

The probability of a spinner stopping on 5 is 1/9. the probability of the spinner stopping on 6 is 4/9. what is the probability of the spinner stopping on 5 or 6? a. 4/9 b. 4/81 c. 5/9 d. 5/18

What does an algebraic expression always have?