HELP IM TIMED What is the multiplicative rate of change of the function? One-third Two-thirds 2 9

For one history test, keith had to answer 40 questions. of these 40 questions, keith answered 28 of them correctly. what percent did keith get on his history test? round your answer to the nearest tenth if necessary

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out