If thhe ratio of red to pink roses is 5 to 4 and there are a total of 45 roses, how many of them are red

On a piece of paper graph f(x)=5•(0.4)^x

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.

Aschool allots ? 1500 to spend on a trip to the theatre. theatre tickets have a regular cost of ? 55 each and are on offer for 1 5 off. a train ticket for the day will cost ? 12 each. if 2 teachers and the maximum number of students attend, how much money will the school have left over?