4. The temperature of a sample of a fluid that is being heated in a laboratory is given by h(t) = 30t − t^2 degrees Celsius, where t is measured in minutes and 0 ≤ t ≤ 5. Find the equation of the tangent line to h(t) at t = 3.

Will give brainliest what is the value of x? enter your answer in the box.

Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²