20 0
60
50
0
10
20
30
40
Distance (miles)
For each delivery, there is a fixed charge plus a charge for the distance.
(a) How much is the fixed charge?
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Tom makes two deliveries of bricks.
The distance of one delivery is 20 miles more than the distance of the other deliver
(b) Work out the difference between the two delivery costs.

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

What is the value of x when x + 7 = 21?