Simplify (t^2-25) / (t^2+8t+15) / (t-5/t+9)

What is the probability of selecting a male from a group of 4 males and 8 females?

O que está faltando nesta definição de "congruência"? Congruência - Duas ou mais coisas são congruentes se forem iguais

How much is 7$ in coins

What is the sum of 3m + 7y + 5 - m - 6y?

A person in good physical condition can put out 100 W of useful power for several hours at a stretch, perhaps by pedaling a mechanism that drives an electric generator.

Write y=x^2+4x-5 in vertex form. Then identify the vertex.

Grover decides to swim downstream to search for new bones. He can swim 30 miles down stream in 3 hours. To return home swimming against the current, takes Grover 5 hours. What is Grover's swimming speed of the stream's current.

Gwen borrowed $20 from her mother to buy a scarf. Then, she went to her favorite department store and charged a pair of boots for $120 and boot socks for $12. Which absolute value statement describe's Gwen's total debt?

10 chocolates for $2.30 how much is it for 1 strawberry?

Angie borrowed $1,485 from the bank to purchase a new laptop for the veterinarian's assistant. The interest on the loan was 7.75% for 2 years. How much will Angie have to pay back at the end of 2 years?