Y= x + 4 y = −2x − 2 explain how you will solve the pair of equations by substitution. show all the steps and write the solution in (x, y) form.

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

What is the simplified form of square root of 400 to the 100th power ?

The product of 3 and a number increased by 8 is 31