Someone and explain the first one so the half life of a radioactive kind of potassium is 12 hrs . how much will be left after 36 hrs, if you start with 64 grams of it? so i did a=64(1/2)^36 power is that the accurate form i need asap
btw this is exponential decay

a. turk and mcalister

b. howard, mission, and market

c. yes. since streets end some do not cross yet are not parallel to others. example: mcalister and 5th

step-by-step explanation:

parallel lines are lines which do not intersect ever and look a lot like railroad tracks. turk, mcalister and golden gate are examples of these.

intersect are streets which cross each other and a car on one can reach the other. howard, mission, and market intersect with 6th.

skew lines are lines which neither intersect nor are parallel. these lines exist here because some streets end and never intersect another like mcalister and 5th.

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925