Quick In a few sentences, explain why letters and symbols are used in algebra. Give one example of a
basic equation with an unknown value, using a letter or symbol of your choice.

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

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 range? can’t seem to find it out