A number plus 17 is 25

On average 14.1% of welds performed by a particular welder are defective. if, in one day, the welder creates three welds. what is the probability none of the samples are defective?

Factorise completely 9a^2-1

Which is the equation of a circle with diameter AB with A (5, 4) and B ( - 1, - 4)

At pauls pizza shop, 3 pepperonipl pizzas are sold for every 2 cheese pizzas sold. if 12 cheese pizzas are sold during a 20 minute period, how many pepperoni pizzas would the restaurants expect to sell during this time?

Write (5x) 2 without exponents.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.