Which of the following statements is true? a. a higher saving rate allows us to invest in our capital stock and results in economic growth. b. investment in our capital stock lowers our growth rate and living standards. c. higher saving rates lower living standards. d. if you want more tomorrow, you have to produce more today.

A

Step-by-step explanation:

Higher savings equals to higher Investments (S = I) where S is savings and I is investment

Output is measured as,

Y = C + I + G

Y is output

C is consumption

I is investment

G is government spending

With higher investment due to higher savings will lead to higher output in the economy and therefore leading to economic growth

then, the surface area of the sphere shown in the image is: 256π sq. units!

step-by-step explanation:

the lateral surface area of a sphere is 2πrh where h=2r.

then:

surface area = 4πr^2.

in this case, r=8 units ⇒ surface area = 4π(8 units)^2. = 256π sq. units!

then, the surface area of the sphere shown in the image is: 256π sq. units!

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.