Rosa Bought some place mats costing $17.16 and some napkin ring’s, what was the Total cost for 1 place mat and 1 napkin ring? Brian is trying to lose at least 2 pounds a week by eating less and walking 2 miles each day. For the past 3 weeks, he lost 2.4 pounds,1.9,and 3.2 pounds. what was the average number of pounds he lost?

There 2 questions so can someone answer them for me?

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!

At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.

Mallory has been offers two different jobs. she can baby sit for 6 hours a week and get $8.50 an hour. or she can work at the library for 14 hours a week and make $5.50 an hour. which job will allow her to save the most money after 6weeks?