Its just a matter of subbing ur numbers into the formula given 1. d = rt when r = 144 and t = 18 now we sub d = 144 * 18 d = 2592 <== 2. d = rt when r = 56 and t = 3.5 sub d = 56 * 3.5 d = 196 <==
3. A = L * W when L = 2 ft and W = 15 inches....this one u have to convert to inches...2 ft = 24 inches...so L = 24 and W = 15 A = 24 * 15 A = 360 in^2 <==
4. A = L * W L = 3m and W = 32 cm...have to convert to cm.....1 m = 100 cm...so 3 m = 300 cm A = 300 * 32 A = 9600 cm^2 <==
u basically do the same for all the others....its just a matter of subbing and solving
