Need with two questions.

1. the average price of a sofa at the warehouse is $450 with a standard deviation of $75. if you wanted to make sure you could save enough money to cover the cost how much should you save up? hint: you will be making an educated estimate and justifying your answer.

2. using the same data as #1, how many people out of 30 could get a sofa for $400 or less?

anyone who could me with this, would be super awesome!i really don’t get how to solve these.

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a.ab=bc b.bc=xy c.ab=wx d.

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42