Intermediate November 2020 Unit 2 Q2

(a) Write down the next two numbers in the following sequence. [2]

50     39     28     17     ……………     ……………

(b) Use the formula \(x = 4a + 3b\) to find the value of \(x\) when \(a = 7{\cdot}2\) and \(b = -4{\cdot}6\). [2]