Please solve I need help pls

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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