Identify the expression equivalent to 2x + 8 by substituting x = 7 and x = 5.
A.
2x + 10 + 10
B.
2(x + 2)
C.
(x + 4) + (x + 4)
D.
(x+4)
E.
212x + 4)

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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.

The frequency table shows a set of data collected by a doctor for adult patients who were diagnosed with a strain of influenza. patients with influenza age range number of sick patients 25 to 29 30 to 34 35 to 39 40 to 45 which dot plot could represent the same data as the frequency table? patients with flu