Multiple Choice
Use an equation to solve the problem.
-Junior high classes of 35 students each met in the cafeteria to take achievement tests. If exactly 5 students sat at each table and 28 tables were used, how many classes took the tests?
A) 17 classes
B) 4 classes
C) 7 classes
D) 6 classes
Correct Answer:

Verified
Correct Answer:
Verified
Q13: Simplify.<br>- <span class="ql-formula" data-value="\frac{3}{5} m+\frac{3}{25} m"><span
Q14: Solve the equation. Round the solution
Q15: Solve.<br>- <span class="ql-formula" data-value="-4 \mathrm{a}=28"><span class="katex"><span
Q16: Solve.<br>- <span class="ql-formula" data-value="\frac{1}{3} x=14"><span class="katex"><span
Q17: Solve the equation.<br>- <span class="ql-formula" data-value="2
Q19: Solve the equation.<br>- <span class="ql-formula" data-value="44=27-8
Q20: Solve the equation.<br>- <span class="ql-formula" data-value="22+\frac{m}{5}=-18"><span
Q21: Solve the problem.<br>-To estimate his travel
Q22: Solve the equation<br>- <span class="ql-formula" data-value="6
Q23: Solve.<br>- <span class="ql-formula" data-value="\frac{6}{5}+y=-2"><span class="katex"><span class="katex-mathml"><math