Amanda's garden is rectangular and measures 12.5m by 9.2m. The garden is to be sown with grass seed. The gardener needs 25 kg of grass seed for each square metre of ground. Grass seed costs £5.35 per kg. The gardener estimates that he will need £20 to buy the grass seed. Amanda disagrees with the gardener's estimate. She gives the gardener £15 to buy the grass seeds. Which estimate do you agree with? Explain your answer.

What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with 3f(x)? a) shifts the line 3 units up b) shifts the line 3 units down c) increases the slope of the line by a factor of 3 d) decreases the slope of the line by a factor of 3

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.