The nth term of a sequence is 25-3n
a) work out the first three terms of the sequence
b) work out the value of the first negative term of the sequence

➷ Substitute the three values in (1, 2, 3)

25 - 3(1) = 22

25 - 3(2) = 19

25 - 3(3) = 16

The first 3 terms are 22, 19 and 16

b) 25 - 3(9) = -2

The value of the first negative term is -2

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y = 0.77(x)

step-by-step explanation:

the jacket retains this value after 23% cut or retains 77% of original value. plug original 87 jacket price for x and the remaining value should be y.

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2