Your mom opens an account to save money for a family vacation. the account earns an annual interest rate of 4%. she earns $37 in simple interest after 6 months. how much money did she put in the account when she opened it? use the formula

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 =

What is the value of x? enter your answer in the box.

Which of the following values have 3 significant figures? check all that apply. a. 10.1 b. 100.05 c. 120 d. 129