Answer:
-16
Step-by-step explanation:
4x3y2
replace variables with numbers
4×-1×2×2
-4×4=
-16
Answer:
0
Step-by-step explanation:
3x+21=3(x+7)
3x+21=3x+21
3x-3x=21-21
0x=0
x=0
Answer:
right triangle
isosceles triangle
Step-by-step explanation:
The box in the corner means that this triangle is a right triangle. It is a 90 degree angle
We know this is an isosceles triangle since the two sides have the lines on them. Those marks means it has the same side length.
First you have to give the number a name. Call it Bob.
6 more than 7 times Bob is 41.
(7 Bob) + 6 = 41