Sam will earn $99 for 12 hours of babysitting.
<h3>What is an equation?</h3>
Two or more expressions with an equal sign are defined as an equation.
Given that, Sam earns $33 for babysitting for 4 hours.
4 hours = $33
4 ×3 hours = $33×3
12 hours = $99
Hence, Sam will earn $99 for 12 hours of babysitting.
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288.64
this is the real answer the last one was a mistake
4 option is correct I think so
The regression sum of squares (RSS) represents: a. The amount of variation in Y around its mean that the regression function can account for.
<h3>
What is regression sum of squares?</h3>
The regression sum of squares serves as the sum of the differences that exist between the predicted value and the mean of the variable.
The Sum of Squared Error however states the difference between the observed and the predictive value.
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Find 20% of 4.21 which is 0.842.
Add 0.842 to 4.21 which is 5.052
Since it’s money round to 2 d.p.
$5.05
Hope this helps!