Zero is the additive identity for addition. For example, 0+a=a, where a is a rational number.

What is the multiplicative identity n such that a*n=a for any rational number a?

Laura ordered a set of blue and black pencils. She recieved 120 pencils, and 59% of them were black. About how many black pencils did Laura recieve? show work

Write the next three terms of the arithmetic sequence 5/6, 2/3, 1/2, 1/3

Charlotte is creating a triangular pennant with geometry software. The base measure of the pennant on screen is 550 pixels. The height is 275 pixels. Charlotte resizes the pennant, keeping the aspect ratio constant, so the height is 165 pixels.

Happy halloween every one sorry moderators today i want to pass my spirit today

A certain forest covers an area of 3400 km2. Suppose that each year this area decreases by 7%. What will the area be after 15 years?

The square root of 32 you the nearest hundredth

A biology class takes a field trip to a nearby ... field, and collects data on the biodiversity (the number of different plant and animal species) in their local ecosystem, Each student randomly selects one square meter of ground, and counts all the

Desk cost $349.50 once delivered invoice reflects $387.22. If tax is 7.5% how much was the shipping charge?

If I get £20 a month and don't spend it, how much money will I have by October 2019

A painter painted about half o room in half a day. Coley estimated the painter would paint 7 rooms in 7 days. Is coley's estimate reasonable