1) a) How many millimetres are in a centimetre? b) How many centimetres are in a metre? c) How many metres are in a kilometre? d) Work out how many millimetres are in a metre.

2 The eighth and tenth terms of a sequence are 64 and 100. If the sequence is either arithmetic or geometric, the ninth term can not be \( \begin{array}{ll}\text { 1) }-82 & \text { 3) } 80 \\ \text { 2) }-80 & \text { 4) } 82\end{array} \)

8 Examina lo siguiente y cont Una fábrica de clavos dispone de do clavos y la máquina \( 2,70 \% \). El porce de \( 2 \% \) y de la máquina 2 , de \( 3 \% \). Si s y éste es defectuoso, ¿cuál es la pr máquina 1 ? a) 0.2020 , aproximadamente b) 0.2222 , aproximadamente c) 0.3232 , aproximadamente d) 0.4242 , aproximadamente

Carly has \( 81 / 2 \) cups of flour for multiple recipes. She uses \( 43 / 4 \) for the cakes. She uses 1.75 for the cookies and \( 8 / 10 \) for apple bars. How much flour does she have left?

their school's craft falr, Diego and Rachel are both selling homemade bars of soap. So far lego has sold 18 bars of soap and has earned \( \$ 31.50 \). Rachel has sold 20 bars of soap and las earned \( \$ 34.00 \). Who is offering the better bargain?

\( ( - 3 , - 27 ) , ( 1 , q ) \)