please help me with the following math problems i am having trouble with

\fQ MamAs Assassmem x u pins: mp me aulwilh x E 4 ( C l n Secure \\ hilps//malhas.pvcma\"(apaedu/assessmenl/shcut/testphp?a(tioli:sklp&lo:3 Apps @chnmmea a Amamnxam'Samsu ASeMuAvizanarAnL 1331 ClarkeMaiui D NewTala Y Vanna D sadngm.talgel.znm Home > MAT151 2011 in 5|) 09 15195 On Ila >mment Durham 0 Module Qulz #9/11 Due Wed 05/03/2017 11:59 pm Show Intru/lnstrumuns 0mm\" Hhry In: 30 coins in he: pocket, all iii which an nickel: and dimes. [I (In mm vzlne or her thing! is 51.50, how nully nickel: 2nd him many diam do\" 5].! In\"? ' Q 1 [0/ 1") Nun-bu ofninlmk that 11in;ry 1.2.5 : F 0 2 (0/10) F 0 3 (0/10) _ _ p M (0/10) Number ofduna that Balm, Ins : V Q 5 [10/10] v Q a [10/10] D Q 7 (0/10) P0005 possibie: 10 mm v Q 8 [10/10] Lln'lmited Emmpts. V Q 9 [10/10] > o 10 (0/10) Submit Grade: 401100 Print View on