ASAP HELB If I have a frequency of 3 Hz, how many waves passed a point in a given second?

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?

Find the zeros of each function. f(x) = 6x^2 - 7x - 20

Evaluate 5 + 6 · 2 – 8 ÷ 4 + 7 using the correct order of operations. a. 22 b. 11 c. 27 d. 5