On monday, luis picked up seven scones and six large coffees for the office staff. he paid $ 29.97. on tuesday, rachel picked up four scones and five large coffees for the office staff. she paid $ 20.08. what is the cost of one scone? what is the cost of one large coffee?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample