Sorry to bother but can you help me with my math 31 - (-17) =?

Which measure is equivalent to 110 ml? 0.0110 l 0.110 l 1.10 l 11,000 l

What is the lcm of 16 and 40 ? 24 and 40 ?

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.