Two cars are traveling on the interstate. The blue car is traveling at 65 miles per hour. The red car is traveling at 45 miles per hour AND is 50 miles ahead of the blue car.
How long will it take for the blue car to catch up with the red car?
y = 65x
y = 45x + 50

2 1/2 hours

Step-by-step explanation:

use substitution method:

65x = 45x + 50

20x = 50

x = 5/2

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

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.