Three is added to a number, and the sum is multiplied by 4. The result is 16. What is the number?
1
4
3.25
16

I think one.

Step-by-step explanation:

Because 16 divided by 4 is 4 minus the 3 and its 1. So I think 1 is the mystery number.

hope i help

1

Step-by-step explanation:

"Three is added to a number"

1 + 3 = 4

"the sum is multiplied by 4"

4 x 4 = 16

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!