Uma mercadoria foi comprado por r$500,00 e vendida por r$800,00. qual a porcentagem de lucro sobre o preço de venda

Nine more than four times a number is the same as one less than twice the number. find the number?

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

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re