Aballoon seller has 4 green balloons, 3 yellow balloons, and 9 silver balloons. roy buys a green balloon. then you buy a balloon at random. what is the probability that you have purchased another green balloon? (type as fraction)

With math question will mark brainliest question in the pic.

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test

What point is the projection of q on a) r b) s c) t