Answer:
15 more students needed
Step-by-step explanation:
If they have 16 signed up and need minimum of 21, then need an equation
1: 21-16=?
2: 21
- 16
-------
15
D. -4(x+9)
For this you distribute the number outside the parentheses to both numbers inside.
A. 4(x-9)=
4x-36
B. 2(2x-18)=
4x-36
C. -2(2x-18)=
-4x+36
D. -4(x+9)=
-4x-36
Therefore, D is the answer
Maybe try to take another pic of the paper so I can see the rest of the question. Then I can try to figure it out. :)
Answer:
$16
Step-by-step explanation:
Round : $80.36 : $80
Equation : 20% of 80
Answer : $16
Sidenote: I hope this answers your questions!
the area and volume of the Pyramid of Gaza are 139, 840 m²
and 52950 m³ respectively.
<h3>How to determine the parameters</h3>
The formula for volume and area of a square pyramid are given thus;
Volume, V=
Area ,
Where
- a is the base length
- h is the height
Substitute the values;
Area =
Area =
Area =
Area = 52900 + 86, 940
Area = 139, 840 m²
Volume , v =
Volume = 52900 + 50
Volume = 52950 m³
Thus, the area and volume of the Pyramid of Gaza are 139, 840 m²
and 52950 m³ respectively.
Learn more about a square pyramid here:
brainly.com/question/9071478
#SPJ1