10 Mason's can build a wall working 7 hours a day, in 12 days. In how many days can the work be completed by 14 persons working 8 hours a day?​

7 hr * 12 days = 84 hours

10*84 = 840 man-hrs to build the wall

14 men * 8 hr = 112 man-hrs/day

840/112 = 7.5 days

Step-by-step explanation:

18.8 cubic inches.

step-by-step explanation:

volume of a cone = πr²h

r = 1.5 inches

h = 8 inches

pi = 3.14

volume of our cone = × 3.14 × 1.5² × 8 = 18.84 square inches

or equals to 18.8 square inches rounded up to nearest tenth.