5) The height in feet of a firework t seconds after it is launched from a 6 foot-high platform is given by h(t) = -16t² + 60t + 6. For the firework to explode above the safe height of 60 feet, during what time interval must it explode? Write your answer in the answer box in interval notation, rounded the nearest tenth.

Solve 2t-3(t+8)=-(1-4t)+10 for t.  Simplify all fractions or round decimals to two places.

A landscaping company is hired to mow the grass for several large properties. The total area of the properties combined is 1,350 acres. The rate at which one person can mow is as follows: ŷ = 1350 − 1.5x  where x is the number of hours and ŷ represents the number of acres left to mow. How many acres will be left to mow after 36 hours of work? (Enter an exact number as an integer, fraction, or decimal.)

Solve for x: 5x = 1253