Which choice shows (50+30)+40 correctly written using associative property and then correctly simplified

Find the x-intercepts of the parabola withvertex (1,1) and y-intercept (0,-3).write your answer in this form: (x1,if necessary, round to the nearest hundredth.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

If you can solve all of these i will give ! - 4% of 190 - 4% of 162.5 - 4% of 140 - a 4% increase from 155.1 - a 4% increase from 159.8