Answer:
B
Step-by-step explanation:
The exponential decay formula is
y= ab^x
where a is the initial value and
b = 1- decay rate
b= .9
.9 = 1 - decay rate
Subtract 1 from each side
.9-1 = 1-1-decay rate
-.1 = -decay rate
Multiply by -1
.1 = decay rate
Change to a percent
10 % = decay rate
Answer: right
Step-by-step explanation:
, and larger numbers are to the right of numbers smaller than them on the number line.
Answer:
x=4
Step-by-step explanation:
5x+10=30
Subtract 10 from each side
5x=20
Divided each side by 5
x=4
She tipped the waitress $11.58
