find the perimeter of a triangular garden whose length are 15m, 20.5m and 17.5m also it's semi perimeter​

What is the slope of the line shown below?

Find an equation for the linear function which has slope -10 and x-intercept -7

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 =