Find the volume of a cement slab with a height of 11 inches, width of 4 inches and length of 23 inches..
A.) 933 in
B.)1012 in
C.) 344 in
D.) 753 in

Astudent must have an average on five test that is greater than it equal to 80% but less than 90% to receive a final grade of b. devon's greades on the first four test were 78% 62% 91% and 80% what range if grades on the fifth test would give him a b in the course? ( assuming the highest grade is 100%)