Casey has $120 in a saving account that earns 10% simple interest per year. the interest is not compounded. how much money will she have in 1 year? plz show work and explain.
a.$ 100
b. $122
c. $ 132
d. $144

The correct answer is C. $132

Step-by-step explanation:

Principal = $120

Simple Interest Rate = 10%

                                  = 0.1

Time = 1 year

We need to find the amount of money she will have in 1 year

⇒ Simple Interest = Principal × Rate × Time

⇒ Simple Interest = 120 × 0.1 × 1

⇒ Simple Interest = $12

So, Amount after 1 year = Principal + Simple Interest

⇒ Amount after 1 year = 120 + 12

⇒ Amount after 1 year = $132

Therefore, The correct answer is C. $132

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere

the answer is  

a.

4,624π mm2

step-by-step explanation: