Given that a, b, c, and d are squares of rational numbers, prove that a + b root 2 + c root 3 =0

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Solve the inequality and graph 6j - 7 < 5

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax