Andy has 310 in his account. each week w he withdraws 30 for his expences which expression could be used if he wanted to find out how much money he had left after 8 weeks?

With these: 18/36 = 1/? missing number change 1 5/8 to improper fraction. change 19/5 to a mixed number.

65 8 7 4 5 6 8 4 3 2 1 9 5 6 4 2 1 6 5 1 5 1 3 2 3 5 multiply the third number in the first row by the seventh number in the third row. add this result to the fifth number in the second row. add to this total ten times the fourth number in the third row. subtract the eighth number in the first row from the result.

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?