The ratio of the number of marbles in box a to that in box b is 4: 3. if 1/2 of the marbles in box a are moved to box b, what will be the new ratio of the number of marbles in box a to box b? this is all about changing ratios by the way

In the 30-60-90 triangle below side s has a length of and side r has a length

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?

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.