Find the amount of energy (Q) required to raise the temperature of the water in kilo joules (KJ). Given mass of water m = 2kg = 2000g. Temperature difference ΔΤ = T2 – T1 = 60 °C – 25 °C = 35 °C . Specific heat of water = 4.18 J/g* °C .

Sum is 17 and their difference is 3

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

Asmall business produces and sells balls. the fixed costs are $20 and each ball costs $4.32 to produce. each ball sells for $8.32. write the equations for the total cost, c, and the revenue, r, then use the graphing method to determine how many balls must be sold to break even.