On the last three chemistryexams a student scored 87, 88, and 89. what score must the student earn on the next exam to have an average of at least 90?

the student must score at least %.

Suppose your school costs for this term were $4900 and financial aid covered 3/4 of that amount. how much did financial aid cover? and how much do you still have to pay?

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

10x − 5y + 14 = 0 whats the answer pls