Is f (x) = sec x concave up or concave down at x = 17/pi/4

Which fraction is greater than 3 + 1/2 - 55/8 or 7/8

Order these fractions from least to greatest. 1/4, - 3/7, 1/2

An electrician charges $35 per hour plus a fixed amount for residential work. For a job that took 6 hours, he billed $270. Write an equation in the form y = mx + b that represents the cost, c, of hiring this electrician for a job that takes x hours.

Y and x have a proportional relationship and y=9 when x=2 what is the value of y when x=3

Sam paid 640 for a camera at a 20% off sell how much did it cost before the 20% off

Which is greater 1/4 or 3/4

2x+8=7x-12 || - m/4+5=2 || 3x-8=-17 ||

Which of the following could be the graph of y=-x^n where n is odd

A 12-ounce can of coke costs $1.00. A 16-ounce bottle of Pepsi costs $1.35. Which is the better deal? Explain how you got your answer.

Use the relationship between x and y to find the time it takes for the runner to reach the school.