Answer:
C
Expand the bracets then simplfy and then factorise
Answer:
b=40-5a/2
Step-by-step explanation:
5a+2b=40
2b=40-5a
b=40-5a/2
pls mark brainliest
<span>There are 47,124 different committees you can select.
Explanation:The number of combinations of 9 teachers taken 3 at a time is given by
</span>

<span>
The number of combinations of 34 students taken 2 at a time is given by
</span>

<span>
Together this makes 84*561 = 47124 combinations.</span>
Answer:
170 people I believe
Step-by-step explanation:
93 + 47 = 140
140 + 25/2 = 140 + 13 = 170
<span>Pete's age is 15/3 = 5 years old
Bryan's age is 15 years old
Philip's age is 15+5 = 20 years old
20+15+5= 40</span>