Answer:
100
Step-by-step explanation:
100 is the lowest number 50 and 20 both go into.
Answer:
If both integers are negative then the sum is always negative.
Step-by-step explanation:
Answer:

Step-by-step explanation:
(a)Base Area
Side length of square base=s
Area of a Square of side length s=
(b)
- Height =6 ft
- Volume=

Volume of a Pyramid
Substituting the given values, we have:

(c)Solving the equation derived from (b)

Solving this equation shows that s =9 ft.
Sally ⇒
4 hours = 1 room
1 hour = 1/4 of the room
Steve ⇒
9 hours = 1 room
1 hour = 1/9 of the room
Sally + Steve ⇒
1 hour = 1/4 + 1/9 = 9/36 + 4/36 = 13/36
Number of hours needed ⇒
1 ÷ 13/36 = 1 x 36/13 = 36/13 = 2 10/13 hours
Answer: They need 2 10/13 hours.
You just need to do 15% of $53.47 which is about $8 (8.0205)