The sum of three times a number and four is less than it equal to 10

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.