No it can not.............
Answer:
To get an expression relating to x you need to have x alone on one side of your equation. ie x =
Try this:
rx - st = r
remove st from the rx side
rx = r + st
now divide by r
x = (r + st)/r
You now have your expression relating to x
Answer:
£60
Step-by-step explanation:
Let 
be the original price.
Answer:
Food B has fewer calories.
Step-by-step explanation:
To find the unit rate we had to transfer both to have the denominator. To do that we have to find a common denominator both 4 and 3 have. The common denominator is 12. We then use 12 as a denominator and solve. (Sorry I don't really know how to explain.)
Food A=
12 ÷ 4 is 3, 3 × 3 = 9.
9/12
Food B=
12 ÷ 3 = 4, 4 × 2 = 8.
8/12
