Andrea chai tea solve the equation 1/4(x+12)=2.What was his mistake​

7(x - 2) = 3(x + 4) solve the following equation. then enter your answer in the space provided using mixed number format.

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

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%)