The sum of a number times 4 and 19 is at least -17. Translate the sentence into an inequality. Use the variable b for the unknown number.
Please help me I have an assignment in Algebra due today thank you so much

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

X² + 4y² = 36 the major axis runs along: a) y=4x b) x-axis c) y-axis

The function h (t) = -16t squared + 28t + 500 represents the height of a rock t seconds after it's propelled by a slingshot what does h (3.2) represent?