Answer:
Step-by-step explanation:
You multiply the exponents to get:
Then you divide it by 
When dividing exponents, you subtract.
10 - - 2 = 12 so the exponent is 12.
That leaves us with:
Answer:
1. b
Step-by-step explanation:
Ten cakes costs $2.19 (pounds, but I don't have a pounds symbol on my computer) because if you divide $2.10 by seven you get $0.3, and if you add 3×0.3 (because we have seven, and we need to add three more to get ten) we get $0.9.
0.9+2.10=2.19
1379.52 is the answer to your question
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.
