Answer:
C.
Step-by-step explanation:

add 10 to both side
so...

divide by -5 so, the sign flips because multiplying or dividing with a negative number changes the sign.
30/5=6
There are 6 reading groups
24 students ÷ 4 students each group= 6 reading groups
Answer:6%
Step-by-step explanation:
Decrease = 1500 - 1410= 90
% decrease = (90/1500)*100%
= 6%
Answer:
6%
Step-by-step explanation:
6 divided by 100 is 0.06.
then you multiply 0.06 by 135 and that is 8.1
then add 8.1 to 135 and you get 143.1 or 143.10