Given g(x) = 3(5 – x), find x when g(-1).​

Fraction form =  x = 15/2

Decimal =   x = 7.5

Mixed Number =    x = 7 1/2

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

tip $2.90

total $17.40