WILL MARK BRAINLIEST!! 30 POINTS! Replace * with a number in such a way that the trinomial could be rewritten in the form a(x+b)^2 or a(x−b)^2.

2x^2−5x + *

(basically you just need to complete the square)

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

The test scores of 32 students are listed below. construct a boxplot for the data set and include the values of the 5-number summary. 32 37 41 44 46 48 53 55 57 57 59 63 65 66 68 69 70 71 74 74 75 77 78 79 81 82 83 86 89 92 95 99

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?