Evie buys a coat that is marked down by 30% from the original price. after the markdown, the sale price of evie's coat is $56.00. what was the original price of the coat before the markdown? a.$72.80 b.$80.00 c.$86.00 d.$95.20

Part a : solve -vp + 40 < 65 for v part b : solve 7w - 3r = 15 for r show your work .

Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?