David counts the quarters in his change jar. he has 24 more quarters than his brother rob. if r is the number of quarters rob has, which expression represent the number of quarters and david and rob have it all

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Students are given 3 minutes to complete each multiple-choice question on a test and 8 minutes for each free-responsequestion. there are 15 questions on the test and the students have been given 55 minutes to complete itwhich value could replace x in the table? 5507-m23-m8(15-m)8(15)-m