Numerals in a number which are either nonzero, or are zeros which do not serve merely as placeholders are called ___ digits.

A photocopier enlarges the original in the ratio 2:3. The height of a tree is 12 cm on the original. How tall is the tree on the enlarged copy?

Andy carried 1/2 gallon of water on a hike. He drank 2/3 of the water. How much water did he drink?

13 Sam wants to buy 8 pencils and 6 pens, which cost a total of $8.50. He realizes he doesn't have enough cash and instead takes only 4 of each, which costs only $5. What is the price of each pen and pencil?

A digital thermometer reports the temperature of 32.6 Fahrenheit as being 31.08 Fahrenheit

What is 0.91 times 8.4 show your work

You are painting the outside of a jewelry box, including the bottom. To find the surface area (S. A.) of the jewelry box, you can use the formula S. A. = 2wl + 2lh + 2wh, where l is the length, w is the width, and h is the height.

5x + 1y + 4z=-1 4x + 6y + 9z = - 68 9x + 1y + 4z = 27 Select one: (7,-4, - 8) (-4,-8, 7) (-8, - 7, - 4) (-7,4, - 8) (-7, - 4, - 8)

A triangle has sides of 15 and 27 what is the measurement of the longest missing side

How many solutions for -2x+4y=-7 y=-1/2x+5

Round each number to the given place-value position 64,569