Asap ! use the quadratic formula to solve: 2ײ-7×-21=0 round your answer to two decimal places. 1 -5.43 and 1.93 2 -1.93 and 5.43 3 -4.5 and 0.98 4 no real solution

Sasha drank 8 bottles of water everyday for a week. how many bottles of water did she drink in total?

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?

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?