A dolphin swam 5 1/2 miles in 1/2 hour. What was its average speed in miles per hour (mph) A. 20 mph
B. 11 mph
C. 1 13/16
D. 10 1/4

Please help

In djkl, side jk measures 10.6 inches, side kl measures 7 inches, and side jl measures 5 inches. based on the information that is provided, which could be a correct set of angle measures for these sides? angle j = 23.2°, angle k = 33.5°, angle l = 23.2° angle j = 23.2°, angle k = 33.5°, angle l = 123.2° angle j = 123.2°, angle k = 23.2°, angle l = 33.5° angle j = 33.5°, angle k = 23.2°, angle l = 123.2°

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

What is the least common multiple for 6 and 8? what is the least common multiple for 4 and 12 ? what is the least common multiple for 11 and 12? what is the least common multiple for 3 and 6?