Rob has 40 coins, all dimes and quarters, worth $7.60. How many dimes and how many quarters does he have?
... please solve this using if systems of equations

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)

What is the ratio fraction form of 25: 9

$30 to spend on dinner tax and gratuity at mos restaurant rax is 6% and they give a 15% tip on the total bill after taxes thier dinner cost $21 which statement correctly explains wether andrew and kate have enough money to pay their bill