Use the following function rule to find f(0).
f(x)=3(8)^x + 6
f(0)=

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

Interpret the following expression (5y^2-7)^3/(2y)^2