In the Itty Bitty High School, there are 85 students. There are 27 students who take French, 51 who take Geometry and 38 who take History. There are 10 that take Geometry and French, 7 that take History and French and 15 that take Geometry and History. There are 2 students who take all 3 and 5 that take none of these subjects.

58 students

Step-by-step explanation:

Given

Required

Students that take only 1 subjects

The attached image illustrates the question.

For French only (x), we have:

Collect like terms

For Geometry only (y), we have:

Collect like terms

For History only (z), we have:

Collect like terms

Students with one subject is then calculated as:

answer is 144

step-by-step explanation:

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