The science department buys microscopes every 5 years, safety goggles every 4 years, and test tubes every 2 years. they bought all three items this year. in how many years will they have to buy all three items again.

What is the measure of angle z in this figure? enter your answer in the box. z = ° two intersection lines. all four angles formed by the intersecting lines are labeled. clockwise, the angles are labeled 43 degrees, x degrees, y degrees, and z degrees.

Suppose i pick a jelly bean at random from a box containing one red and eleven blue ones. i record the color and put the jelly bean back in the box. if i do this three times, what is the probability of getting a blue jelly bean each time? (round your answer to three decimal places.)

Edger needs 6 cookies and 2 brownies for every 4 plates how many cookies and brownies does he need for 10 plates