You have 12 coins to make $1.95, made up of dimes and quarters. Find the # of each coin. Write and solve a system.
Help pls for my final lol

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap

Aclothing store has the sign shown in the shop window. pani sees the sign and wants to buy 3 shirts and 2 pairs of jeans. the cost of each shirt before the discount is $12, and the cost of each pair of jeans is $19 before the discount. write and simplify an expression to find the amount pani pays if a $3 discount is applied to her total

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?