J. Kara followed these steps to evaluate the expression 22 + (30 - 4) +2. 30 - 4 = 26
26 + 22 = 48
48 + 2 = 24
George looks at Kara's work and says she made a mistake. He says
she should have divided by 2 before she added.
Part A
Which student is correct? Explain how you know.

Jamie is hiking up a small mountain. he climbs up at a constant rate of 300 feet/hour until he reaches the peak at 1,500 feet. after that, he hikes down at the same rate to the base of the mountain. the equation that models jamie’s elevation, e, after t hours is e = . jamie’s elevation will be 600 feet after hours and after hours.

Which expression will have the same sum as 3_8 + 1/4?

What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2