Nico had 9 words correct on his weekly spelling test. This is 1 less than what he had correct the week before. Write and solve a subtraction equation to
find the number of spelling words Nico had correct the week before.

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d