Abigail's toaster produces 50 units of heat and 5 units of light for every 100 units of electricity it uses. What is the efficiency of her toaster? 5 percent 45 percent 50 percent 55 percent

There are 57 M&Ms in a standard size bag. At 240 calories per bag, how many calories is it per M&M? Round to the nearest tenth

a proofreader can read 200 pages one in 6 hours and one in 9 hours. Can both meet a 3-hour deadline to work to read the 200 pages?

Clyde made a model of his favorite type of car. his model is 6 inches long, and the actual length of the car is 15 feet. what ratio represents the length of his model to the actual length of the car?

Addison is making caramel apples. She has 2 1/2 bags of apples. One full bag has 8 apples, and each apple weighs 5 oz. Write an expression that could be used to find the total number of oz Addison has. Then find the total number of oz

Find (g ∘ f) (10) when f (x) = and g (x) = 2x + 3. A. 9 B. 15 C. 69 D. 22/3

A circle has a diameter of 3 inches. Grace is trying to determine which equations she can use to find the area of the circle.

Lorelei tosses a coin 4 times. What is the probability of tossing four heads? Express as a percent. Round to the nearest tenth if necessary

M=-2 b = (0,4) find the equation of the line with the given slope and intercept

Derek states that the expression 4 (a+6) is equivalent to the expression 20+4a+4. Is Derek correct? show the proof that Derek is right or wrong! Explain how you determined whether or not the two expressions were equivalent

The graph shows the function f (x) = 3^x What is the value of x when f (x) = 9? A:3 B:1 C:0 D:2