Answer:
312cm2
Step-by-step explanation:
Area of the triangles:
A =1/2bh
A=1/2(10*12) = 1/2*120=60.
There are two triangles. 60*2=120. 120 is the area of both triangles.
Area of the rectangle:
16*12=192.
120+192=312cm2
M-(M•0.16) and M(.84) because the first one you need to multiply to find what 16% of m is then subtract that by m for the second one you subtract .16 from 1 which is .84, then you multiply that by m which will automatically take the 16% decrease which will give you your answer. Both ways give you a 16% decrease of m. I hope this helped
Answer:
a
Step-by-step explanation: