A charity event planer told her volunteers that if they raised 170$ more in donations, then they would reach their overall goal of $1,500. let a represent the amount of donations raised so far. write an equation that can be used to solve for a

Solve the system of equations. y= 2x y= x^2 - 15

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.