The ratio of pens to pencils in Carlo case is 4:5. He has 16 pens. how many pencils does Carlos have?

What's the value of "v" 2/9v + 4 - 2/5v = 5

Solve the following system: y = x + 3 4x + y = 18

sam has twice as many dimes as quarters and two less nickels than dimes. If sam has a total of$ 5.40. if sam has a total of 5.40, how many of each coin does he have If sam has a total of $ 5.40.

What is 0.46 as a whole number?

The temperature T in degrees Fahrenheit is (approximately) a linear function of the number C of cricket chirps per minute. Twenty cricket chirps per minute corresponds to a temperature of 42 degrees Fahrenheit.

Suppose a city with population 200,000 has been grown a rate of 4%. If the rate continues, find the population of this city in 19 years?

What is x 3x-11+9=10

What is the difference between the equations of a vertical and a horizontal line?

Clark has a budget of $12 to spend to buy nuts for a party. The three lines represent the cost of buying bags of three kinds of nuts (walnuts, pecans, or peanuts) of varying weight.

What is a composite number?