5 centimeters wide and had an area of 20 cm2 what is the anser

Identify the number as a rational or irrational.explain. 127

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?

Use the quadratic function to predict f(x) if x equals 8. f(x) = 25x2 − 28x + 585