Lines a and b are represented by the equations given below:

line a: x + 2y = 3
line b: x + y = 3

which statement is true about the solution to the set of equations?

there are infinitely many solutions.
there are two solutions.
there is one solution.
there is no solution.

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

What is the y-intercept of the line given by the equation

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work