How do I do substitution for this problem

y=4x-9

y=x-3

What is the missing value in the solution to the equation Y+2=-3 (x-4)

three eight of the student in ms. mull class ride the bus. If there are 24 student in the class, how many students ride the bus

A preacher would like to establish that of people who pray, less than 80% pray for world peace. In random sample of 110 persons, 77 of them said that when they pray, they pray for world peace. Test at 10% level of significance.

James has 16 balloons 1/4 of them are red. How many are red?

Each box has 10 bags in it. each bag contains 10 blocks in it. how many boxes do i need to make 200 blocks

1 plus 1 is equal to 2 but jonas has 19 more

What is 45 over 2 in decimals?

Solve the equations: a (9x-5/2) - (3+2x/3) - (8x-2/4) = 2 b (5x-1/7) + (4x-3/2) - (3-2x/2) = 6 c (8x+7/6) + (3-2x/4) - (5x-2/2) = 32

Approximate the square root of two to the nearest tenth

Annabelle's mom backed one dozen cupcakes Annabelle took 1 third of that to school how many cupcakes did she take