Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes

0.6

Step-by-step explanation:

(- 4.9 × -2) - 9.2

9.8 - 9.2 = 0.6

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

13cm

step-by-step explanation:

(apex)