Answer:
pxp^8=12
Step-by-step explanation:
Answer:
b+7
Step-by-step explanation:
To simplify an equation, you combine like terms and remove redundancies. Like terms are 4b and 3b, another pair of like terms are 9 and 2. Let's combine them. 4-3 is 1, so we can make the equation into 1b+9-2. We can simplify that to b+9-2. But wait, we can combine 9 and 2. 9-2 is 7, so the final simplified equation is b+7. I hope this helps!
Answer:
7 hours
Step-by-step explanation:
Since, the final amount of caffeine formula would be,

Where,
P = Initial value,
r = rate per period,
t = number of periods,
Here, r = 10% = 0.10, t = h, A = 


Taking log both sides,



Hence, after 7 hours the amount of caffeine in a body to reduce by half.
<span>13 more than 4 times a number is negative 91
</span>Convert to numbers:
13 more than 4: 4+13
times a number: (x)
is negative 91: = -91
Put it together:
4x+13=-91
x = -26
Expand the EXPRESSION
9x^2+216x+1296