Problem #1 A collection of nickels and dimes is worth $9.45. If the number of dimes is doubled, the value is
$16.65. Find the number of each coin.

solve in the matrix way!

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

Which expression and diagram represent “renee biked four times as far this month as last month”?

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell