Find the value of f(4) for the function.
f(x) = -5(x+3)
f(4)=

Marcus and cody both leave the park at the same time, but in opposite directions. if cody travels 6 mph faster than marcus and after 4 hours they are 64 miles apart, how fast is each traveling? solve using rare times time = distance.

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122