2m+3=23
2m=20
m=10
let me know in the comments if you need further explanation :)
8 * 24 feet = 192 sq feet per 5 hours
12* 36 = 432 square feet
432 is 2.25 times the area of 192 square feet
So, it takes 5 * 2.25 = 11.25 hours
Answer: 39
Step-by-step explanation:
2x+17-17=95-17 so 2x=78 if you divide both sides by two you will find x=39
Answer:

Step-by-step explanation:

Answer:
2x=80°
x=40°
40°+20°=60°
Step-by-step explanation:
all triangles are 180°