Betty invested some money at 15% interest. betty also invested $⁢237 more than 2 times that amount at 13% . how much is invested at each rate if betty receives $⁢1688.03 in interest after one year? (round to two decimal places if necessary.)

Answer this question only if you know the 30 points and

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

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