28. Invitations On Monday, you invited 2 friends to your party. On Tuesday, each friend invited 2 other friends. On Friday, each of
those friends invited 2 more friends. How many
people were
invited on Friday? Write your answer as a power. Then find the
value of the power.

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

I'll give brainliest if you answer right : )