Agroup of scientists studied the effect of a chemical on various strains of bacteria. strain a started with 12000 cells and decreased at a constant rate of 4000 cells per hour after the chemical was applied. strain b started with 6000 cells and decreased at a constant rate of 3000 cells per hour after the chemical was applied. when will the strains have the same number of cells?

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

Raj encoded a secret phrase using matrix multiplication. using a = 1, b = 2, c = 3, and so on, he multiplied the clear text code for each letter by the matrix to get a matrix that represents the encoded text. the matrix representing the encoded text is . what is the secret phrase? determine the location of spaces after you decode the text. yummy is the corn the tomato is red the corn is yummy red is the tomato

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5