Its C. It has to be equivalent to the number divided or multiplied by 5.
If the SPF rating is 20 then it means it would provide 20 times the protection instead of no sunscreen and 20 times longer someone would take before the person started to burn or in this case 200 minutes.
Answer: mg(OH)2 = +37
Rbl = 31
RbOH= -83
mgl2= -144
Explanation: just did it on edge2020
Answer:
6.52 × 10^14 Hz
i don't know if that's right tbh
