Answer:
9/10 I hope this helps :))
Hey there!
We're going to be writing an expression, which means there's no equals sign, and no values are being compared or set equal to each other.
When we say decreased by seven, we really mean you're subtracting seven from that quantity because to decrease is to take away.
Therefore, if we have our number q decreased by seven, we have:
q - 7
Hope this helps!
Three times larger.
This is because you have to multiply 2m (the smaller prism) by three to get 6m (on the bigger prism), then you will find that if you multiply the rest of the numbers (on the smaller prism) by three you will get the exact numbers that are on the big prism. Hope this helps!
The commutative property of addition.
Answer:

Step-by-step explanation:
We know that we have a 9 foot long ladder resting upon a wall, with an unknown height, but the ladder is 4.5 feet away from the wall.
This can be represented as a triangle, where x is the unknown side.
|\
| \
x | \ 9
| \
| \
|_____\
4.5
We can use The Pythagorean Theorem to find the value of x. The theorem states that
, where a and b are the lengths of the legs and c is the length of the hypotenuse.
However, we already know the hypotenuse and one leg. Therefore we can substitute inside the equation to find the missing value.

Hope this helped!