Please help, I need this by 10 30 AM Friend A donated $20.00 plus $1.25 for every lap Chloe swam.

Friend B donated $15.00 plus $2.50 for every lap Chloe swam.

Friend C donated $40.00 plus $1.50 for every lap Chloe swam.

Friend D donated $25.00 plus $1.75 for every lap Chloe swam.

Part A

How many laps did Chloe swim if her four friends raised $450 all together?

Part b

Using the number of laps that Chloe swam from Part A, who donated the most money, Friend B or Friend C?

50 laps

Step-by-step explanation:

20+1.25x+15+2.5x+40+1.5x+25+1.75x=450

7x+100=450

7x+200-200=450-100

7x=350

7x/7=350/7

x=50

37

step-by-step explanation:

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.