400 reduced by 3 times my age is 163

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

What is the solution to the division problem below x3+x2-11x+4/x+4

Convert the number to decimal form. 12) 312five a) 82 b) 30 c) 410 d) 1560 13) 156eight a) 880 b) 96 c) 164 d) 110 14) 6715eight a) 53,720 b) 3533 c) 117 d) 152