Which expression is equivalent to cos(103°)cos(54°) – sin(103°)sin(54°)? sin(49°)
cos(49°)
sin(157°)
cos(157°)

D - cos(157)

Step-by-step explanation:

Cos sum angle identity

cos(A+B) = cosAcosB - sinAsinB

103+54=157

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540