The middle school soccer team is selling t-shirts for $15.50 each to raise money for new uniforms. They have already sold 25 t-shirts. If they need to raise a total of at least $1000, how many more t-shirts does the team need to sell?

Solve the problem by making up an equation. a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 3 times the age of the child?

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top