Aworker has installed 65%of the tiles for a tile floor. if they installed 120 tiles so far, how many tiles are there total?

185 tiles ( to nearest tile)

Step-by-step explanation:

Use Proportion:-

65% is equivalent to 120 tiles

1%  is equivalent to  120 /65  tiles

100 % ( all the tiles) is equivalent to  ( 120 / 65) * 100

=   185 tiles ( to nearest tile)

not sure but it may be b, as i said i'm not sure.

  or  

sin y = 7/q

7 is the opposite side length, q is the hypotenuse

tan y = 7/r

7 is the opposite side length, r is the adjacent side length

using sohcahtoa ^^^^

cos y = adjacent/hypotenuse

cos y = r/q