Cece scored a 78 on her first math test.

She scored an 84 on her second test. What
is the percent increase, rounded to the nearest tenth, from Cece's first score to
her second score?

increase = 6

6/78 = 1/13 = .07692 = 7.7%

To calculate the percent increase from Cece's first score to her second score, we need to find the difference between the two scores and divide it by the first score. Then we multiply by 100 to find the percentage.

Step 1: Find the difference between the two scores.
Difference = Second score - First score
Difference = 84 - 78
Difference = 6

Step 2: Divide the difference by the first score.
Percentage increase = (Difference / First score) * 100
Percentage increase = (6 / 78) * 100
Percentage increase ≈ 7.69

Therefore, the percent increase is approximately 7.7% rounded to the nearest tenth.