Mrs wong has 2000 plants in her nursery . 65% of the plants were orchids and the rest were roses . after some orchids were sild and 125 roses were added , the percenrage of orchids became 45% of all the plants in the nursery. how many orchids did she sell?

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

7x+8y=-18, 4x-9y=-3 solve the system of equations

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.