Assuming that the missing operations are multiplication as it is with the first question "bd", then the answer would be as follows:
1.) Simply substitute the values of b and d before multiplying.
bd = (-2)(-6) = 12
2.) (-50)(-2) = 100
3.) (5/8)(7/12)= 35/96
Answer:
68 cm, 68 m is too big.
Step-by-step explanation:
Answer:

Step-by-step explanation:
the general equation of a circle is

with (h,k) being the centre of the circle and r the radius