PLEASE HELP ASAP Simplify the following expression:

a + 2c − 5b − c + a − b

Question options:

2a − 6b + 2c

2a − 6b + c

a − 6b + c

a − 5b + 2c

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

The median am of triangle ∆abc is half the length of the side towards which it is drawn, bc . prove that triangle ∆abc is a right triangle, and find angle mac and abm

In order to be invited to tutoring or extension activities a students performance 20 point higher or lower than average for the