What is the place value of 8 in 87

What is the missing number in this pair of equivalent fractions? 16 40 - ? 100

1. 2.? B and? Y are right angles. 3.? 4.? Which two statements are missing in steps 3 and 4?

Find the solutions to the system; y=x^2-3x-1 and y=8x-1 a) (0,-1) and (11,388) b) (0,-1) and (11,87) c) (-1,0) and (87,11) d) no solution I know the first step is to make them equal to each other, x^2-3x-1=8x-1

10. Mr. Ward bought a used car forx dollars. One year later the value of the car was 0.72x. Which expression is another way to describe the change in the value of the car? A 0.28% decrease B 0.72% decrease C28% decrease D 72% decrease

Tom invested £1000 for 2 years with Bettabank. He got 2.5% simple interest each year. Jay invested £1000 for 2 years with Moneyplus. She got a total of £60 interest for the 2 years. Show that Jay got the better investment.

Maria practices her saxophone for 45 minutes each time that she practices. She practiced 208 times this year. How many minutes did Maria practice her saxophone this year? Enter your answer in the box. min

A store owner buys a total of 4,000 items for two different products. for shipping costs, it is $0.10 per item of product a and $0.04 per item of productb.

What kind of number is a negative number?

Room temperature is about 68 degrees Fahrenheit (F). What is that temperature in Celsius (C) ? 9/5 c + 32 = F (9/5 is a fraction)

Which number sentence shows the commutative property of addition? 3 + 0 = 3 3 x 1 = 3 3 + 5 = 5 + 3 3 + (8 + 2) = (3 + 8) + 2