In a certain chemical the ratio of zinc to copper is 4 and 19 a jar of the chemical contains 456 grams of copper how many grams of zinc does it contain?

Each morning papa notes the birds feeding on his bird feeder. so far this month he has see. 59 blue jays, 68 black crows, 12 red robin's and 1 cardinal. what is the probability of a blue jay being the next bird papa sees

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15