Albert receives $0.30 per pound for 1 to 49 pounds of glass bottles he recycles. he receives $0.40
per pound if he recycles more than 50 pounds. is the amount of money albert receives a function
of the weight of the bottles he recycles? explain your reasoning.

Yes

Step-by-step explanation:

The amount of money Albert receives is described by the expression

The graph is shown below.

To determine if the relation is a function,  we can use the vertical line test:  

If a vertical line crosses the graph more than once in any location, the relation is not a function.

We see that at no place will a vertical line intersect the graph more than once.

The relation is a function.

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116