Solve the problem. Write your answer as a mixed number when possible.Karl Mason sold 
gross of data disks on Monday, 
gross on Tuesday, and 
on Wednesday. What was the total gross sold?
A. 
gross
B. 
gross
C. 1
gross
D. 
gross
Answer: B
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Solve the problem.A heat engine is a device that converts thermal energy into other forms. The thermal efficiency, e, of a heat engine is defined by 
where Qh is the heat absorbed in one cycle and Qc, the heat released into a reservoir in one cycle, is a constant. Find 
.
A. 
= 
B. 
= - 
C. 
= Qh - Qc
D. 
= 
Solve the problem.Let vector u have initial point P1 = (0, 2) and terminal point 
Let vector v have initial point 
and terminal point 
u and v have the same direction. Find 
and 
. Is u = v?
A. 
= 8, 
= 8; no
B. 
= 2
, 
= 2
; yes
C. 
= 
, 
= 
; yes
D. 
= 
, 
= 
; no
Find the indicated intercept(s) of the graph of the function.x-intercepts of f(x) = x + 
A. (-1, 0), (1, 0) B. (-1, 0) C. (1, 0) D. none
Solve the problem.Andrea Gilford's savings account has a balance of $94. After 2 years, what will the amount of interest be at 3% compounded quarterly?
A. $-3.21 B. $10.79 C. $1.41 D. $5.79