Determine whether the given pair (x, y) is a solution of the given system of linear equations in each number. 1. (2, 3); x- y = - 2
3x + y = 3

2. (1, 1); 2x + 7y = 9
3x - 10y = -7

3. (-2, -1); 5x - 3y = -7
-x - y = 3

4. (0, 0 ); 8x - 4 y = 0
2x + 3y = 7

5. (1, 0); 3x = 3y + 3
y = 5x - 5

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu

Aresearch group wants to find the opinions’ of city residents on the construction of a new downtown parking garage. what is the population of the survey downtown shoppers downtown visitors downtown workers city residents