Sean and abby have 23 markers altogether. abby has 14 markers. how many markers does sean have

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2