Write and solve an equation to find the percent increase or decrease. Round your answer to the nearest tenth of a percent, if necessary.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 30 questions correct. What was the percent of increase?
A. 16.7%
B. 20%
C. 80%
D. 5%
Answer: B
Mathematics
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A. 1
B. 2
C. 1
D. 0
Mathematics
Write the decimal as a fraction. Do not write in lowest terms.7.7
A. 
B. 
C. 
D. 
Mathematics
Perform the multiplication.
A. 60.219 B. 60.22 C. 60.109 D. 60.209
Mathematics
Solve the problem.A person standing close to the edge on top of a 80-foot building throws a baseball vertically upward. The quadratic function 
models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how many seconds does the ball reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 5.0 seconds C. 1.5 seconds D. 144 seconds
Mathematics