5x+2y+3z=24

2x+3y=7

3x+4y=10

The city planning committee wants one tree planted every 20 ft along Dayton Avenue. If the perimeter of the plot of land is 234 ft, about how many trees will be planted?

Suppose 8 out of every 20 students are absent from school less than five days a year. Predict how many students would be absent from school less than five days a year out of 40,000 students.

Lawanda sells candy bars for $2 each. How many bars must she sell to raise $60?

Cameron has 47 candies that each have a mass of 78 grams. What is the total mass of Cameron's candies?

Simplify 6a^2 - 2c + 2a^2 + 2c^2

Write this ratio as a fraction in lowest terms. $77.68 to $20.55

525$deposit. 4% interest. 1 year. calculate the simple interest earnef

3^2-2^3 what is that

Multiply the following numbers. Reduce the answer to lowest terms. 1 1/7 * 2 4/5

Do 4x and 15 + x have the same value when x is 5? How do you know?