Henry bought 280 red and blue paper cups. he used of the blue
ones and 3 of the red ones at a party. he had an equal number of
blue cups and red cups left. how many cups did he use at the part

didn’t put the number for how many blue cups were used

Explanation:

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.