Video express sells used tapes marta bought v tapes for 45$ write an algebraic expression for the average cost of each tape.

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

If m is the midpoint of ln and ln=27.8 find the length of mn