Solve the system of equations using the substitution method.
9x- 1 = y
y - 9x = -5​

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Find the perimeter of the figure shown above. a. 50 cm c. 30 cm b. 64 cm d. 60 cm select the best answer from the choices provided a b c d

Lucy and donavan measured the length of the school garden. lucys measurement is 11.3m and donavans measurement is 113 cm. could both be correct? explain