PEAS HEL Lena was practicing freediving. On her first attempt, she dove to a depth of −63.4 feet. Her second attempt changed by 25 of the original depth. How far did Lena dive on her second attempt?

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%)