Chứng minh rằng: A = 1 + 3 + 5 + 7 + ... + n là số chính phương (n lẻ).

Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared

In the figure, a∥b and m∠3 = 34°. what is the m∠7 ?

There are 8 hamsters at crazy pete's pet shop that are completely brown. the rest of the hamsters at the shop are mixed colors. the 8 brown hamsters represent 2525 of the total number of hamsters at the pet shop. write and solve an equation, using the variable h, to find the total number of hamsters at the pet shop.