3.1 Besides increasing the price, other methods of inflation are also used. For
example, a certain brand of coffee use to be sold in 225g tins. The company
kept the same tin size, but changed the mass to 200g and printed this on the
label. The price was kept the same
3.1.1 If this tin of coffee costs R58.99, then what should the price have
been after they reduced the mass?
3.1.2
What percentage increase in the price of coffee does this decrease
in mass represent?
3.1.3 What should this R58.99 tin of 225g of coffee have cost if they
added 11.1% inflation instead of decreasing the mass?

Find the difference (8ab+a+2) - (3ab+6)

What is the slope of the equation y =

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?