Explain why the sawtooth function, sawtooth(x) = x − ⌊x⌋ for all real numbers x, takes only the fractional part of
a number when the number is positive.

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x, y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis