A^2 + b^2 = c^2
a^2 + 7^2 = 11^2
49= 121
121 - 49 = 72
Square root(72) = 8.49
or you can just keep the square root symbol with 72 under it
Answer:
(a) I'm pretty sure it's $71.75
(b) the total would be $771.75 if i calculated it right...
Answer:
6 | 3
30 | 15
40 | 20
56 | 28
Step-by-step explanation:
You need to find out how many spring rolls will feed a single person

then use this to multiply by two if you want number of rolls, or divide by two if you want to get number of people that can be fed.
You will have to cross multiply and also distribute the fractions like this:
2/3 of 3/8 times 16
so 3/8 times 16 is 6
Now take 2/3 of 6 and youll end up with 4! :)