An appliance manufacturer recommends keeping the freezer set at -18c what is -18

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

You have 138.72 in your saving account u take out 45.23 and 18.00 you deposit 75.85 into your account

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.