Answer:
Combined time: 55.316 seconds
The difference in times: 0.856 seconds
Tips:
It is addition and subtraction. A basic calculator should help with any other questions such as this one!
Hi , the answer is 600 , because 3920 miles divided by 420 minutes[7hours] equals to 9.33 and 9.33 times 60 minutes[1 hour] equals to 559.8 , which is an approximate of 600.
the expression for mean in this case is

with d standing for expenditure in December. Now solve for d:

The student has to spend $45 to meet his goal.
All you gotta do is multiply the cm by 15,
For 13) you'd do

14)
15)

then for 16)
Answer:
$29.26
Step-by-step explanation:
27/100=0.27
0.27*8=2.16
27.00+2.16=29.16
hope this helps!