-6x + 7y = 9
2x - 2y = 4

Which expression is equivalent to 2x2 – 2x + 7?

In these lines from “Elegy Written in a Country Churchyard,” which aspects are rooted in the period in which the poem was written, and which would apply to life in any period?A.The details about farming are rooted in the period, while the theme that hard work brings satisfaction can be applied to any period.
B. People clearing land for farming is rooted in the period, while enjoying one’s time off by playing team sports applies to any period.
C. The idea of people finding joy in their hard work is rooted in the period, but such methods of farming can be applied to any time.
D. Utilizing a team to plow a field is rooted in the period, but using sickles is a modern concept.

K=1/2mv^2
How do I solve for m?

A survey shows that the probability that an employee gets placed in a suitable job is 0.65. A psychometric test consultant claims that he could help place any employee in a suitable job based on the result of a psychometric test. The test has an accuracy rate of 70%. An employee working in a particular company takes the test. The probability that the employee is in the right job and the test predicts that he is in the wrong job is_______The probability that the employee is in the wrong job and the test predicts that he is in the right job is ________

The distances (y), in miles, of two cars from their starting points at certain times (x), in hours, are shown by the equations below:Car A
y = 45x + 20

Car B
y = 35x + 60

After how many hours will the two cars be at the same distance from their starting point and what will that distance be?

3 hours, 200 miles

3 hours, 180 miles

4 hours, 200 miles

4 hours, 180 miles

Evaluate the expression for the value of x=-3. (If not possible, state the reason)
2x-2