Answer:
Simplified: -21-98t
Factored: -7(14t+3)
Step-by-step explanation:
The given expresion is:
14-28t-5(7+10t)
We expand the parenthesis to get:

We group like terms to get:

We combine similar terms to get:

We now factor to obtain:

Https://us-static.z-dn.net/files/d8d/e008ced388704d59896d3bf37158f465.jpeg
5% = 0.5
0.5n = 85
Divide by 0.5
0.5n = 85
/0.5 /0.5
n = 170.
The number is 170.