Whats 7 to the power of negitive 2

Two step equations: Four more than twice a number is 8

A certain number was multiplied by 4. Then, this product was divided by 19.4. Finally 6.4 was subtracted from this quotient, resulting in a difference of - 8.4, What was this number?

The relationship between the number of dollars per month that a company spends on advertising and its monthly sales can be modeled by the equation y = 0.1x + 10,000, where x is the amount spent on advertising and y is the monthly sales.

Mandy wants to know the most popular kind of book at school Describe how Mandy could choose a sample

a right triangle with an angle of approximately 53.1 is inscribed in the first quadrant of the unit circle with a horizontal length of 3/5 and a vertical length of 4/5 complete the table for the following trigonometric functions

You estimate that there are 66 cars in a parking lot. the actual number of cars is 75. find the percent error

Which is steeper: the boat ramp or a road with a 12% grade? Explain. (Note: Road grade is the vertical increase divided by the horizontal distance)

George had 6 sheet of animal sticker. each sheet had the same number of stickers. a friend gave him 4 more animal stickers. now he has 40 animal stickers. how many animal stickers were on each sheet?

The school took in & 875 at the bake sale fundraiser. 60% of the money came from cupcake sales how much money did the school make selling cupcakes

A tortoise can walk 140.8 inches in 40 seconds. how many feet can a tortoise walk in one minute?