the number line below shows the four scores that Andy has at the end of each of the four rounds of a science competition. points can either be added to or deducted from the previous round score depending on how many questions has she answered correct or incorrect. answer the difference in points between the scores after round 1 in after round 4.

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation:

you have orange juice on wednesday. (idk why this is the answer)

step-by-step explanation:

the answer is $4.45. i started by figuring out the cost of the plates and napkins. the easiest way to figure this cost out is through the tax. we know the way they found the tax is by multiplying the cost of non-food items by the tax rate (5% or 0.5). so, all we have to do to find the cost before tax is set up an equation and work this formula backwards. the equation is 0.19=0.05x where x is the cost of the plates and napkins. now all you do is divide both sides by 0.05 to come up with 3.8=x. now that we know the cost of the plates and napkins is $3.80, all we have to do is subtract this cost from the total cost of $8.25 giving us the cost of the watermelon which is $4.45.