Mary spent $45 at the mall. She bought lunch for $9 . She bought 3 shirts at x dollars each. Which of the following equations could be used to find x ?

3x + 9 = 45

Step-by-step explanation:

3 shirts at x dollars each cost 3x

lunch costs 9

altogether she spent 3x + 9

she spent 45

3x + 9 = 45

answer:

1. 0.04

2. 0.15

step-by-step explanation:

i just finished that assignment for properties of probability distributions.

-6 is the correct option from the above given options