Abotanist measures the height of a type of grass on monday and again on friday. the botanist finds that the percent increase in height is 3.2%. if the height of the grass on friday is 16.3 cm, what was the approximate height of the grass monday?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

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

Another type of subtraction equation is 16-b=7. explain how you would sole this equation then solve it.