There are some red counters and some green counters in a bag. at the start, 7 of the counters are red and the rest of them are green.
cole takes a counter at random from the bag. she does not put the counter back in the bag. she then takes another counter from the bag.
the probability that the first counter is green and the second counter is red is 7/26. work out the number of green counters in the bag at the start.
: 3

Igure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below: 4 quadrant coordinate grid showing two parallelograms. figure 1 has vertices at negative 5, 2 and negative 3, 4 and negative 4, 7 and negative 6, 5. figure 2 has vertices at 5, negative 2 and 7, negative 4 and 6, negative 7 and 4, negative 5. which two transformations can map figure 1 onto figure 2? reflection across the y-axis, followed by reflection across x-axis reflection across the x-axis, followed by reflection across y-axis reflection across the x-axis, followed by translation 10 units right reflection across the y-axis, followed by translation 5 units down