1 ponto 1. Uma máquina, ao sair da
fábrica, sofre uma
desvalorização constante pelo
seu uso, representada pela
função P(t) = 1550 - 5t, em
que Pé o preço da máquina
(em reais) e té o tempo de uso
(em anos). Determine o custo
da máquina a sair da fábrica. *
O a) R$ 500,00
O b) R$ 1455,00
O c) R$ 1500,00
O d) R$ 1550,00​

Marco is studying a type of mold that grows at a fast rate. he created the function f(x) = 345(1.30)x to model the number of mold spores per week. what does the 1.30 represent? how many mold spores are there after 4 weeks? round your answer to the nearest whole number. 1.30 represents the number of mold spores marco had at the beginning of the study; 985 mold spores 1.30 represents the number of mold spores grown in a given week; 448 mold spores 1.30 represents the 30% rate of weekly growth; 345 mold spores 1.30 represents the 30% rate of weekly growth; 985 mold spores

Which of the following expressions is equal to 2x^2+8

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )