Nayara wants to know the percentage of each grade level of students at her school who drive to school. she has 4 grade levels in her school. which of the following survey methods will allow nayara to make a valid conclusion about what percentage of each grade level of students drive to school?
choose 1
a. randomly select 48 students who drive to school and ask them their grade level.
b. randomly select 12 students from each grade level and ask whether they drive to school.

Complete the solution of the equation. find the value of y when x equals -5. -4x - 8y = -52

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.

Solve for x. −3/4(x+2)=6 enter your answer in the box