Why do perfect squares only end up with certain numbers in the last place?

There is a line whose slope is 1 and whose y-intercept is -10. What is its equation in slope-intercept form?

What numbers add to 21 but equal 472

Which of these are expressions? 1, 7 2, 0 + 0 3, 2 + 5 4, 8 · 9 - 5 = 72 - 5 5, a⁄9 P. S There is more than one answer.

Marta collected 363 cans. Diego collected 295 cans. How many cans Marta and Diego collected?

How many thousands make 5crore

Amir drove from Jerusalem to the lowest place on Earth, the Dead Sea. His altitude relative to sea level (in meters) as a function of time (in minutes) is graphed. How long was each descent by 88 meters?

12v = 9v + 6 solve for v

Lonnie divides a pipe into 10 inch sections. Each section represents 1/8 of the pipe's length. What is the original length of the pipe?

Is 5.45repeting a Rational irrational whole number or

Susan bought a bike for $93.75. If the bike was originally $125, what was the percent of discount?