Ascientist measures the air temperature in death valley, california, and records 50 °c. the expression 1.8c + 32 gives the temperature in degrees fahrenheit for a given temperature in degrees celsius c. find the temperature in degrees fahrenheit that is equivalent to 50 °c.

Aswimming pool has an input pump for filling the pool and an output pump for emptying the pool. the input pump can fill the pool in 3 hours, and the output pump can drain the pool in 5 hours. as you go to bed, the pool is full, but a neighbor’s kid turns on the output pump. at midnight, you awake to find the pool half empty. immediately, you turn on the input pump, but you are sleepy and forget to turn off the output pump. at what time will the pool become full?

How are sas and sss used to show that two triangles are congruent?

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?