Ineed serious try hard answers this is my test i cannot

use the discriminant to determine the number of real solutions to the quadratic equation given below?
-3x^2 + 7x - 8 = 0

a.) no real solutions
b.) two real solutions
c.) infinite solutions
d.) one real solution

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

What percent of 18 is 24? and plz explain thx.

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).