Can a parent ever be exactly three times as old as the child

Tom dose not really want to give away any blue marbles and would like to change the probability that he chooses a blue marble to 1/10 how many marbles that are not blue could he add to the bag so that probability of choosing a blue marble becomes

Find the values of k such that the equation kx^2-x-1 = 0 has no real roots

How can one thirdx - 2 = one fourthx + 11 be set up as a system of equations?

a large cheese pizza coast $7.50. each additional topping for the pizza costs $1.35. if the total bill for the pizza sally orders was $12.90, how many toppings did she order?

What is the Greatest Common Factor of the expression 12x^4 + 18x^2

26.48:0.02 you have to show work

Which number equals (3) ^-3? A) - 27 B) - 9 C) - 1/27 D) 1/27

How many lines of symmetry does a regular polygon with 16 sides have?

151% find the decimal notation

11 π 90 11 π 90 radians