Answer:
13 glue sticks cost $25.22.
Step-by-step explanation:
4 blue sticks cost $7.76, this means that one glue stick costs
$7.76/4 = $1.94.
Let 
be the cost of the glue sticks, and 
be the number of glue sticks; then
We can use this equation to find the cost of 13 glue sticks; we just put 
into our equation and it gives:
So 13 glue sticks cost $25.22.
Answer:
29 child 55 adult
Step-by-step explanation:
x+y=84
22x+48y=3278
x=29,y=55
hope it will help, if not, sry, u can comment below to ask me!
The surface area of the square pyramid if the length of the sides of the base are 10 cm, and the slant height is 15 cm is 416.2 cm²
<h3>Surface area</h3>
Surface area of the square pyramid
= a² + 2a√a²/4 + h²
where,
- a = sides of base = 10 cm
- h = slant height = 15 cm
Surface area of the square pyramid
= a² + 2a√a²/4 + h²
= 10² + 2(10)√10²/4 + 15²
= 100 + 20√100/4 + 225
= 100 + 20√25 + 225
= 100 + 20√250
= 100 + 20(15.81)
= 100 + 316.2
= 416.2 cm²
Learn more about surface area:
brainly.com/question/16519513
#SPJ1
The answer is B. 56.544. Hope this helps:)
