SAT Subject Test Mathematics Level 1

3 .

Figure  1

Figure  1

shows   a   square  with    total   area    of  121 square  units.  Based   on  the

figure, what    is  the value   of  x?

(A) 2

(B) 4

(C) 7

(D) 11

(E) 49

4 . A plumbing company charges $42.50 plus x dollars per hour to make a
house call. Which expression below represents the cost of a 90-minute
house call?

(A) 90(42.50    +   x)

(B) 1.5(42.50   +   x)

(C) 1.5(42.50x)