A multiple choice test consists of 100 questions. A correct answer is worth 2 marks, while an incorrect is worth - 1 marks. If a student receives a score of 80, how many questions did this student answer incorrectly?

Professor Juwana spent 3/5 of an hour correcting 6 papers. At this rate, how many hours will it take him to correct 30 papers?

A small car company sold 65.000 cars last year. Ninety-five percent of those cars had airbags. How many cars had airbags?

An equation is shown 120: __ = 1.20

In this lab, you will do experiments to identify types of changes. Using the question format you learned (shown above), write an investigative question that you can answer by doing these experiments.

Which addition property is being illustrated below? (Type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Suppose that a single card is selected from a standard 52-card deck. what is the probability that the card drawn is a club ? now suppose that a single card is drawn from a standard 52-card deck, but it is told that the card is black.

How do you write 70% as a fraction or mixed number in simplest form?

All are Algebra 1 questions. What is x? 1. 7 (x-5) - 2 = - 100 2. 2x+6 (5x-5) = 130 3.-5x+3 (-4x-11) = 137 4.2 (x+9) - 15 = - 3 5. 5-3 (x-7) = 32 6.3-3 (x-5) = 60 7.2x-2 (-3x+3) = 58 8. 5x-3 (-6x+5) = - 130

On a scale drawing, 1/4 inch = 2 miles. On the drawing, how many miles are represented by a line that is 3 1/2 inches long? A 7 miles B 12 miles C 14 miles D 28 miles

If y varies inversely as x and y = 8 when x = 9, find x when y = 12.