A bicycle store cost $3200 per month to operate. The store pays an average of $40 per bike. The average selling price of each bicycle is $120. How many bicycles must the stores sell each month to break even

40 bicycles

Step-by-step explanation:

Here it the equation to solve this:  3200= (120-40)b

3200 is the cost to operate, the 120 is how much they sell a bike for, 40 is how much the store pays for a bike, and b is how many bikes they need to sell to break even. Plug in the numbers and solve.

d

step-by-step explanation:

hello and welcome!

so, when we see the words "proportional" along with a table, we need to know that we're looking numbers that divide by the same thing.

looking at this table, we simply have to do a trial and error, and divide to see which numbers have the same quotient. if you look at choice a & c, they both have equal quotients for three of the numbers, with one exception, so those can't be the answer. looking at b, there is no similarity, so that can't be it. then, we see d; if you divide all the numbers in the table, you'll see that they all divide by two, which is a proportional relationship, and our answer!

also, always remember that the x will always be the number that goes into y, and somewhere behind this table, is a formula. for this specific table, the formula would be:

since our x-value is being divided by two to get the y-value. and if they were to ask for more numbers in the series, this is the formula you would use to find them.