Answer:A is the correct answer
Step-by-step explanation:
25 is the answer because 50% of 50 is 25
Answer:
Q1) 0.46 Q2)0.2333
Step-by-step explanation:
Q1) P=(4+12+7)/50 =0.46
Q2) P=7/(4+7+10+9)
Answer:
The sum is equal to 
Step-by-step explanation:
we know that
The formula to calculate the sum is equal to

In this problem
-----> number of terms
a1 is the first term

an is the last term

substitute

Answer:
$88
Step-by-step explanation:
To find the increase of $80 by 10%, find 10% of $80 then add it by the original amount
10% of 80=80*0.1=$8
The original amount=$80
Total amount=$80+$8=$88