How many calcium ions are in 0.5 mol of CaCl2?

Two 2-digit numbers can be made from the digits 1, 2, 3 and 4 What should these numbers be so that their: a) product is as large as possible b) difference is as large as possible c) sum is as large as possible

What is the difference? 60-30=

If the outside temperature ranges from - 5 degrees c to 40 degrees c, find the range in degrees fahrenheit.

Line j is a straight line. Line j is a straight line. 2 lines come out of the line to form 4 angles. From top left, clockwise, the angles are: x, y, z, w.

Meg uses 1/4 stick of butter thst means there is 3/4 stick left how can I write the 3/4 as the unit fraction

Find the value of y for the given value of x. y=x+5; x=3 y=

A parallelogram with perpendicular diagonals is a

Dr. Barber ordered 121 syringes and 53 needles. In total, how many items did Dr. Barber ordered

Jaime wants to know how fast she can type, so she times herself as she types a paper. The paper has 442 words in it, and Jaime types it in 13 minutes. What is her typing rate, in words per minute?

How can one fourthx - 3 = one halfx + 8 be set up as a system of equations?