Me with 1 also can you explain so i get how to do it? ?

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar

The length of a rectangle plus its width is 24 cm. the area is 143 square cm. what are the length and width of the rectangle?

At the beginning of the year, adrian's savings account balance was \$28$28. each week, he deposits another \$15$15 into that account, and he doesn't spend any of his savings. is his savings account balance proportional to the number of weeks since the start of the year?