HELP I NEED HELP WITH CIRCUMFERENCE!! What is the radius of a circle with circumference of 50 cm? Round your answer to the nearest whole number. Use π = 3.14. A. 4 cm
B. 3 cm
C. 8 cm
D. 7 cm

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?