Which equation represents a direct variation? y = 2x

y = x + 4

y = 1/2x

y = 3/x

The brain volumes (cm cubedcm3 ) of 50 brains vary from a low of 922922 cm cubedcm3 to a high of 14961496 cm cubedcm3. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 161.

Square root of 36 rounded to the nearest hundredth

Estimate product using rounding 9.7 x 3.3=

Sugar was traditionally produced and sold as sugarloaves, which are cones of sugar wrapped in paper. Find the volume of a cone-shaped sugarloaf with a base of diameter of 8 centimeters and a height of 22 centimeters.

What property of real numbers is being used in the following (x+a) (x+b) = (x+a) x + (x+a) b?

The number of pages that Albert, Keith, Rita, and Bess can read in a day is shown below: Albert read 15% of his 56-page book. Keith read 12% of his 64-page book. Rita read 16% of her 42-page book. Bess read 10% of her 72-page book.

If Jaalan takes a number of marbles he has and multiplies it by 5 and then subtracts 10, he get 275. Write an equation and solve to see how many marbles Jaalan has?

The quotient of 100 and the quantity of 25 times 3?

What's the perimeter of the polygon shown above? 116cm 136 cm 141 cm 131 cm 43 cm

Write an algebraic expression with the constant 7 and the variable and Y