Uma pessoa comprou sete picolés de três sabores diferentes, sendo 4 de morango, 2 de chocolate e 1 de limão. Durante a semana toda, ela irá saborear um deles por dia. De quantas maneiras diferentes de consumir esses picolés, levando em consideração apenas a ordem dos sabores, ela poderá usufruir de seus sorvetes?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Afurniture manufacturer produces chairs and sofas. each chair requires 10 yards of fabric, and each sofa requires 20 yards of fabric. the manufacturer has 300 yards of fabric available. to fulfill orders, the number of sofas must be at least twice the number of chairs. let x be the number of chairs and y the number of sofas. which inequalities are described in the problem? check all of the boxes that apply

Marla bought a book for $12.95, a binder for $3.49, and a backpack for $44.99. the sales tax rate is 6%. find the amount of tax and the total she paid for these items