In a lake, one-fourth of the water is replaced by clean water every year. Sixteen thousand cubic meters of soluble toxic chemical spill takes place in the lake.

How much toxic will be left after 12 years?

When will 80% of the toxin be eliminated?

Simplify the expression below if x > 0 and y > 0

What is the factorization for the number 293

Maria Works in a florist shop in makes flower arrangement she puts 10 flowers in each vase and 2/10 of the flower are daisies last weekend Maria used 10 daisies to make flower arrangements how many flowers other than daisies did she use to make the

Cirilo surveyed his physical education class and found that 12 out of 23 students chose soccer as their favorite sport. write the fraction of students who chose soccer as a decimal to the nearest thousandth.

Let Pbe the set of polynomials. Let a, b, c and d be elements of Psuch that band dare non-zero elements of P Which of the following is true regarding the sum below? A. The sum is a rational expression B. The sum is a rational number C.

How many solutions exist for the given equation? 0.75 (x + 40) = 0.35 (x + 20) + 0.35 (x + 20)

What transformations preserve measure of side lengths and angles.

The cost C in dollars ($) for a canoe rental for h (hours) is given by C = 4.50h + 10 Nick spends $39.25 How many hours did he rent the canoe?

Which rule explains why these triangles are congruent? A. SAS B. ASA C. AAS D. These triangles can not be proven to be congruent.

The aquarium has 30 times as many fish in one tank as jacob had. the aquarium has 90 fish. how many fish does jacob have