exam
Maths Puzzle
Numerical Ability
Amelia chose 3 cds that each cost $16. The sales tax on the three cds is $3.96. Write a direct variation equation relating sales tax to the price.
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exam Other Question
How would you simplify this in exponential form, using only positive exponents,assuming all variables represent nonzero numbers?
x^9*x^-4/x^-2*x^-7
I need to factor this problem.
2x+4+xy+2y