1) evaluate 2a2 - 10 ÷ b for a = 3 and b = 5. 14 16 34 1.6 2) which algebraic expression represents the statement: the sum of twice a number and eight. 2n – 8 n + 8 2n + 8 n – 8 will mark brainliest

Kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value of the coins in the jar is $13.90. how many of each type of coin do they have?

Me what is the value of x? showing work would be appreciated - ! : )

Formulate alisha has a number in mind. if she adds three to her number the result is less than five. use this information to write and solve an inequality about alisha's number. then graph the solution set.