If a graph of y=-9x+ 3 were changed to a graph of y=-9x + 1, how would the
y-intercept change?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)