Answer:
19
Step-by-step explanation:
(8*19+5*18)/(8+5)=242/13=18 8/13
round
19
Answer:
1/4
Step-by-step explanation:
take the negative reciprocal when finding the slope of a perpendicular line.
So, -4 can be written as -4/1
flip it to make -1/4
and remove the negative to make 1/4
Step-by-step explanation:
The square roots of 324 is 18
Answer:
(1)
(3)t=16.93 years
Step-by-step explanation:
For a Principal Saved at Compound Interest, the Amount accrued is derived by the function:

When:
(1)P=$318,000
r=7%=0.07

(2)See Attachment
(3)If Tony's goal is to save $1,000,000.

(4)The graph confirms the result as the $1000000 Mark on the y-axes occurs almost at x=17