Answer:
I may be wrong but i think the answer is D
Step-by-step explanation:
We know that y=10, so if we were to multiply 10 by 7.50, it would be 75, not 63, so A and B wouldn't be correct. and we don't know the value of x, so I think D is the best answer.
Answer:
The correct option is 4.
Step-by-step explanation:
The given expression is

Simplify the given expression.


![[\because x^mx^n=x^{m+n}]](https://tex.z-dn.net/?f=%5B%5Cbecause%20x%5Emx%5En%3Dx%5E%7Bm%2Bn%7D%5D)

Therefore correct option is 4.
Answer:
Step-by-step explanation:
I am not 100% certain but i believe it goes as follows:
4 ( 1 + d ) + ( 3 + e)
4d + 12e