C, because 4 + 8 is 12 and 3 multiplied by 4 is 12 so they agree with one another
You would have to make common denominators
consider a/b,c/d in Q
then a/b - c/d = ad/db - cb/bd = (ad-cb)/db for all a,b,c,d in R, exclude b,d=0
i.e. 1/2 - 1/4
=4/8 - 2/8 =(4-2)/8=2/8 =1/4
Given exponential function
f(x)= 
Where x is the number of years
f(x) is the number of tuna in thousands
To find out when number of tuna is 50 thousand , we plug in 50 for f(x) and solve for x

Divide by 230 on both sides

Take ln on both sides


Divide by ln(0.881) on both sides
x = 
x= 12.04
Year = 1974 + 12.04 = 1986
so in 1986 there will be 50 thousand tuna.
Answer:
130 minutes
Step-by-step explanation:
total minutes = Project A minutes + Project B minutes
= (60 +25) minutes + 45 minutes
= 130 minutes
130 minutes were spent on the two projects combined.
__
1 hour is 60 minutes
Answer:
-18
Step-by-step explanation: