I need help on this please

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

The table above shows approximate conversions from gallons to liters. what is the value of x?

Aline passes through 3,7 and 6,9 what equation represents the line