Answer:
84
Step-by-step explanation:
100-86 is 14
14percent passed so it is 84
Multiply l x w x h for answer
Answer:
Step-by-step explanation:
Let the number of the problems the team could solve before is x.
<u>Then we have:</u>
- x + 40% = 42
- 1.4x = 42
- x = 42/1.4
- x = 30
They were able to solve 30 problems before the new mathletes joined
B because there are infinite possibilities