Answer:
Step-by-step explanation:
The set of all integer numbers
$5.50 x 2 is $11.00
$2.50 x 2 is $5.00
$11 plus $5 is $16
it costs $16 to rent a pair of skates for 4 hours
450 g in 2:13
<u>Total proportion asked for </u>=2+13=15
<u>Now comparing g with ratio, or whatever </u>
450/15=30g 
Therefore 1 in ratio depicts of 30g
So final answer = 
More to know, daily bit of knowledge: The Binomial Theorem:
I'm assuming that y2 means y^2 or y squared. In that case, your factors will be (6y+1) and (6y-1).
<span>With algebraic expressions, you can’t add and subtract any terms like you can add and subtract numbers. Terms must be like terms in order to combine them. So, you can’t always simplify an algebraic expression by following the order of operations. You have to use the distributive property to rewrite the expression and then combine like terms to simplify. With numeric expressions, you can either simplify inside the parentheses first or use the distributive property first.</span>
