Let y=4x^2 find the differential dy when x=5 and dx=0.4

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

The volume of a cube-shaped shipping container is 13,824 cubic inches. find the edge length of the shipping container.