Solve the problem.A rock climber descends to the floor of a canyon in 7 stages, dropping 400 feet each time. Write the total depth of the canyon as a product of integers and find the depth of the canyon.
A. 7 ? (400) = 280; 280 feet deep
B. 7 ? (-400) = -2100; 2100 feet deep
C. 7 ? (-400) = -2800; 2800 feet deep
D. 7 ? (400) = 1800; 1800 feet deep
Answer: C
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Solve. 
+ 1 = 
A. 
, 
B. 12, 9
C. -12, -9
D. 12, -9
Using the Rule of 78, find the amount of unearned interest for the loan paid in full before the date of maturity. Round to the nearest cent.Finance charge: $9,325Total number of payments: 61Remaining number of payments, when paid in full: 35
A. $3,210.25 B. $3,106.69 C. $2,934.10 D. $3,031.90
Find percent notation for the number in decimal notation.0.0092 of all products produced at a certain factory contain defects.
A. 0.92% B. 0.092 C. 92% D. 9.2%
Determine whether the equation has a graph that is symmetric with respect to the y-axis, the x-axis, the origin, or none of these.y = -0.66x4 + x2 + 6
A. none of these B. x-axis only C. y-axis only D. origin only