PLEASE HELP ASAP. ILL GIVE BRAINLIEST IT'S DUE IN 20 MINUTES AND I'M STRUGGLING . HELP ME OUT PLEASE

Given a circle with measures of (c, d, and r) and a circle with measures of (c', d', and r'), what is d if c c' = 12 and d' = 0.50? a) 3 b) 6 c) 12 d) 24

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

X-10/4 when x = –18 a 7 b –2 c –7 d 2