Dear Mod, Please don't delete this question but delete this account please (or to others who aren't mods how long does it take for a brainy account to be deleted)

Explain step-by-step how to simplify -5(2x – 3y + 6z – 10).

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?