Justify each step used to simplify the expression.
3x+2y-2x+2=3x-2x+2y+2
=(3x-2x)+2y+2
=(3-2)x+2y+2
=x+2y+2
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Aswim teacher sells lesson packages. the best deal has the highest ratio of lessons to total cost.swim lesson packagesnumber of lessons total cost$10$4010 1 $8015$80which package is the best deal? l lesson for $105 lessons for $4010 lessons for $8015 lessons for $80mark this and returnsave and exit

Write the equation in logarithmic form e^x=403.429

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle