Use the formula for 
to evaluate the expression.
A. 15
B. 30
C. 4
D. 180
Answer: A
Mathematics
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Solve the problem.A cab company charges a base rate of $1.50 plus 15 cents per minute. Let C(x) be the cost in dollars of using the cab for x minutes. Write a cost function.
A. C(x) = 1.50x + 0.15 B. C(x) = 0.15x + 1.50 C. C(x) = 1.50x - 0.15 D. C(x) = 0.15x - 1.50
Mathematics
Solve the formula for the given variable.I = 
for r
A. r = 
B. r = IR(In - E)
C. r = 
D. r = 
Mathematics
Solve using the addition principle.3.2 = x - 4.3
A. -1.1 B. 7.5 C. 13.76 D. -7.5
Mathematics
Round the decimal to the given place value.13.284, nearest tenth
A. 13.28 B. 13.4 C. 13.2 D. 13.3
Mathematics