Answer two questions about Systems AAA and BBB: System AAA \text{\quad}start text, end text System BBB \begin{cases}-10x-4y=0-2x+7y=8\end{ cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ −10x−4y=0 −2x+7y=8 \begin{cases}-10x-4y=8-2x+7y=0\end{ cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ −10x−4y=8 −2x+7y=0 1) How can we get System BBB from System AAA?

Mr and mrs smith buy tickets for themselves and their four children. the cost of an adult ticket is ? 6 more than the adult ticket. the total cost of the six tickets is ? 40.50 work out the cost of an adult ticket. in your working let c be the cost of the child ticket and a be the cost of the adult ticket.

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5