Solve the equation.

2x − 3 + 4x = 21

a: x = −12
b: x = −6
c: x = 4
d: x = 6

Which functions are even? check all of the boxes that apply. f(x) = x4 – x? f(x) = x2 – 3x + 2 f(x) = (x - 2) f(x) = x done

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest

How do you write y-10=2 (x-8) in standard form