In a city, the owner of a house valued at 260 thousand dollars needs to pay $821.60 in property tax. At this tax rate, how much property tax should the owner pay if a house is valued at 650 thousand dollars? (what equation would I use?)

Explain the answer and how to do it

Me find the value of x each figure.

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.