Lena sells cosmetics and receives commission of 45%. she sold $200 worth of cosmetics to one customer. how much commission did she earn?

Lena earns 45% of commission on the amount of sale she does.

She sold $200.00 worth cosmetics to a customer.

So we need to find 45% of $200.00.

a% of b is given by:

Using the formula above we can find the amount of commission earned by Lena:

So Lena earned $90.00 in commission over the sale worth $200.00 that she made.

-8

Step-by-step explanation:

-3+(-5)

When we solve the above the question we will get the answer which is equal to -8.

We have to sole the above equation by the number line

A number line consist of the negative number on the left hand side and positive numbers on right hand side which are separated by zero at equal distance .

-3+(-5)

On the number line we have to start from zero , then we have to go back 3 steps that is on the left hand side of the number line .

Now , again we have to 5 back steps on a number line  and we get the our answer which is equal to -8.

Hence , the correct answer is -8.