Answer:

Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to

we have

step 1
Find the distance AB
we have

substitute in the formula



step 2
Find the distance BC
we have

substitute in the formula



step 3
Find the distance DE
we have

substitute in the formula




step 4
Find the distance AE
we have

substitute in the formula




step 5
Find out the area of the four walls
To determine the area sum the length sides and multiply by the height of the walls
so

substitute the given values
The height of the walls is 10 ft



step 6
Determine the number of gallons needed to paint the four walls
we know that
one gallon of paint is enough to cover 400 square feet
using proportion

Round up

4x3=12x3=36x3=108x3=324 there is you answer and how i got it hope this helps
20miles increased by 30%=new mileage added
20x.3= 6
6 miles more than his previous distance so...
6+20= 26
NOTE you can also use 1.3 instead of .3 as the percent to get the answer with out addition.
Answer:
Step-by-step explanation:
Tutoring ABC - $50 sign up and $12 an hour
HW helps- $38 sign up and $15 an hour
50 38
<u>+12</u> <u>+15</u>
62 53
<u>+12</u> <u> +15</u>
74 68 Four months
<u>+12</u> <u>+ 15</u>
86 83
<u>+12</u> <u>+15</u>
98 98
Answer: f-1 (x) = x/4
Step-by-step explanation: