The smith family of 4 completes 8 loads of laundry each week. they estimate the total cost (energy, water, and detergent) is $7.76 for these 8 loads of laundry. the addition of another child increases the weekly laundry to 11 loads. assuming the same basic laundry costs, what is the total cost of the new weekly laundry? round to the nearest cent.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?

Plz answer asap! i will reward brainliest and 12 points for these three questions!take notice: these three questions are completely different! 1) what is the percentage of sugar in the syrup made of 10 kg of water and 4 kg of suugar? 2) what was the original price if after 10% discount it became $450? 3) at first a price was decreased by 12%, then it was disounted again by an additional 5%. what is the percent of the total discount? , and remeber i will award brainliest and 12 points!