algebra
posted by franklin on .
The volume of a rectangular slab of concrete needs to exceed 72 cu. ft. If the length is 12 feet and the width is 8 feet, how thick does the concrete slab need to be?

12*8*thickness>72

would I replace the word "thickness" with 96? 12*8*96 > 72?

(12 * 8)t = 72
96t = 72
t = 72/96
t = 0.75 inches