Perform the indicated operation.0.40 - (-0.28)
A. 0.112
B. 0.12
C. 0.68
D. 0.78
Answer: C
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Use the given conditions to write an equation for the line in slope-intercept form.Passing through (4, 2) and perpendicular to the line whose equation is y = 9x.
A. y = - 9x - 22
B. y = 
x - 
C. y = - 
x + 
D. y = - 
x - 
Solve the problem.Sarah plans to contribute monthly to a savings account for her daughter's college education. Her goal is $300,000 in 20 years. Assume the APR is 5.4% compounded monthly and contributions are made monthly at the end of each month, including the last month. What amount does Sarah need to contribute each month? Round your answer to the nearest cent.
A. $642.81 B. $756.95 C. $696.75 D. $688.66 E. $459.57
The following circle graph displays Chris and Mary Smith's monthly $2900 family budget. Use the circle graph to answer the question. 
How much money in total is allotted each month for food and transportation?
A. $650 B. $1000 C. $900 D. $950
Simplify by using the order of operations. Round your answer to the nearest hundredth, if necessary.6.42 + 6.6 - 5.8
A. 13.6 B. 51.84 C. 7.2 D. 41.76