Question 1: h+4= how many kids in history class.
I think this cause it says to represent the # of kids in the English class with the varible h. there are 4 more kids in the history class for you just add four to the English class( h). this may be wrong tho
question 2: 57+4= 61.
you just input the 57 where the h (# of kids in English class) cause it need to figure out how many are in history and their are just four more kids. I think
also sorry if I suck at explaining things, this makes sorta sense
Answer:
12r2+r−7
Step-by-step explanation:
hope it helped
Hi,
Let me help you with this problem.

Answer: 4.5m3
Hope this helps.
r3t40
Answer:
1.7 units
Explanation:
The length of an arc is calculated using the formula below:

Substitute the given values of θ and r:

The length of the arc is 1.7 units.