Solve the problem.Marco had a balance of 
in his checking account. The following positive entries (deposits) and negative entries (withdrawals) are made to the account. -262, 656, and -618What is the current balance in his account?
A. $1484
B. $772
C. $2008
D. $248
Answer: D
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Provide an appropriate response.A student argued that it is impossible to use the substitution method to determine if a system of equations has no solution or an infinite number of solutions. Is the student correct?
Fill in the blank(s) with the appropriate word(s).
Find the time (in days). Round to the nearest day.Principal: $17,000Rate: 9.5%Interest: $942.08
A. 58 days B. 210 days C. 213 days D. 315 days
Find the location and value of each local extremum for the function.
A. (0, 0), (3, -2), (6, 0) B. (0, 0), (6, 0) C. (3, -2), (6, 0) D. (3, -2)
State the linear programming problem in mathematical terms, identifying the objective function and the constraints.A car repair shop blends oil from two suppliers.Supplier I can supply at most 49 gal with 3.8% detergent. Supplier II can supply at most 69 gal with 3.1% detergent. How much can be ordered from each to get at most 100 gal of oil with maximum detergent?
A. Maximize 49x + 69y Subject to: x ? 49 y ? 69 0.038x + 0.031y ? 100. B. Maximize 0.038x + 0.031y Subject to: 0 ? x ? 49 0 ? y ? 69 x + y ? 100. C. Maximize 49x + 69y Subject to: x ? 49 y ? 69 0.038x + 0.031y ? 100. D. Maximize 0.031x + 0.038y Subject to: x ? 49 y ? 69 x + y ? 100.