Factor 4x^2+8x-21 completely

Plot the approximate value of square root of 10 on the number line

Sheila mixed 3 ounces of blue paint with 2 ounces of yellow paint. She decided to create 20 ounces of the same mixture. How many ounces of yellow paint does Sheila need for the new mixtures?

Simplify the expression - 3/4 (-8+5/9x-3)

If a square + b square + c square minus ab minus bc minus ca equals to zero, prove that A equals to B equal to C

The speed of two insects equal the same speed when rounded to the nearest whole number; dragonfly:6.974; horsefly:3.934; bumblebee:2.861; honeybee:2.548; housefly:1.917

Round both numbers to the nearest whole number and estimate the result 6.8*7.9, 7.6*7.5, 0.9*44, 0.2*44

The sum of a 3-digit number and a 1-digit number is 217. the product of the numbers is 642. if one number is between 200 and 225, what are the numbers

Counting codes. How many 3-digit telephone area codes are possible if the first digit cannot be 0 or 1?

The equation P=28+2.54w models the relation between the amount of Randy's monthly water bill payment, P, in dollars, and the number of units of water, w, used. Interpret the P-intercept of the equation.

A roller coaster ride holds a total of 36 passengers. The ratio of males to females on the ride is 5 : 4. Let xx represent the number of males on the ride. Let yy represent the number of females on the ride.