Find the point of intersection of the given pair of straight lines.4 x - y = 175x + y = 28
A. No solution
B. (5, 4)
C. (3, 5)
D. (5, 3)
Answer: D
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An electric company charges a connection fee of $61 plus $0.19 for each kilowatt-hour of electricity used. ? A: Write a formula that gives the cost E, in dollars, of connecting and using h kilowatt-hours of electricity. ? B: Solve the equation you found in part A to express the kilowatt-hours used as a function of the cost E. ? C: How many kilowatt-hours are used if the total charge (connection plus charge for electricity usage) is $155.67?
What will be an ideal response?
Subtract and write the result in lowest terms.
- 
A. 
B. - 
C. - 
D. -4
Solve.It is recommended that there be at least 7 square feet of work space for every person in a conference room. A certain conference room is 16' by 16'. Find the maximum number of people the room can accommodate.
A. 37 people B. 36 people C. 57 people D. 47 people
Add and, if possible, simplify.- 
x + 
x
A. 
x
B. 
x
C. 
x
D. 
x