30 children are going on a school trip
it costs £5 including lunch
some children take their own packed lunch
they only pay £3
the 30 children pay a total of £110
how many children are taking their own packed lunch

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.