9th Grade Algebra 1 Unit 9 Test BE CALCULATOR
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2. A piece of machinery valued at $25,000 depreciates at a rate of
10% each year. Which function models the value of the
machinery after t years?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50