His brother would be 7 years old.
Its adding the current number by the previous number so the next three would be 21,34,55
Answer:
one of the answers is E,F
Step-by-step explanation:
I know this becuase that is a pyramid right there it is an solid but no prims or anything else on there
Answer:
Perimeter = 180
Area = 1080
Step-by-step explanation:
Perimeter is length of all sides added together. 30+78+72 = 180
Area is the length times the height/2 for a triangle. 30*72/2 = 1080
I hope this helped <3
Answer:
d= -5
Step-by-step explanation:
