Answer:
31.5 m^2
Step-by-step explanation:
To find the amount for 7 bags, create a proportion.

To solve for y, cross multiply numerator to denominator of each fraction.
4(y) = 18(7)
4y= 126
y= 31.5
7 bags will do 31.5 m^2
Answer:
Yes, you can square a negative number. In fact, any number at all can be squared, even numbers like pi and 0. This is because to square a number just means to multiply it by itself. ... Note that this is positive because when you multiply two negative numbers you get a positive result.
Step-by-step explanation:
number 2
Answer:
33
Step-by-step explanation:
5(6) + 3
30 + 3
= 33