Marvin has 20 nickels and dimes. He has 2/3 as many dimes as he does nickels. How many nickels and how many dimes does Marvin have?

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Lines b and c are parallel. what is the measure of 2? m2 = 31° m2 = 50° m2 = 120° m2 = 130°

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?