How many solutions does the system of equations have?

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

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?

Wich statement could be used to explain why the function h(x)= x^3 has an inverse relation that is also a function