A flare occurs when magnetic energy that has built up in the solar atmosphere is suddenly released - mostly in the active regions around sunspots. Their frequency varies from several a day, when the sun is particularly active, to less than one a week during quiet periods. Large flares are less frequent than smaller ones.
I would love to know the total sq footage of that 10 room house that you charged $9000+ to paint. Yes the wall sq footage was 5900, but $1.80 per square foot of wall space is a bit high for a residential repaint IMO. Take for example, I charge 1.75 sq foot for 10x10 room with 8 foot ceilings.
1 A large wallpaper mural starts around $200-$800 but can run $1,000-$2,000 or more, depending on size, design and subject matter. 2  Professional installation of an eight-panel mural starts around $200-$300 and goes up depending on complexity. Good, basic wallpaper sells for an average of $25-$50 a single roll, depending on material and style.