Solving systems of equations by substitution y=9*-9 y=9

Seining bought 6 apples for $1.80. Jane brought 5 apples for $1.50. Are the rates in proportion

How many three-digit numbers can be formed from the digits 1, 2, 3 if no repetition of digits is allowed? list the three-digit numbers?

An even number minus an even number

A Jack-In-The-Box is built around a spring with a spring constant of 70 N/m. How hard does the spring push when you compress it from 40 cm long down to 15 cm long?

Triangle abc is a right triangle and sin (53o) =. solve for x and round to the nearest whole number. which equation correctly uses the value of x to represent the cosine of angle a? cos (53o) = 4/xcos (53o) = y/5cos (53o) = x/4cos (53o) = 5/y

Use the formula r = (F/P) ^1/n - 1 to find the annual inflation rate to the nearest tenth of a percent. A rare coin increases in value from $0.25 to 1.50 over a period of 30 years.

How do I use the distributive property to rewrite the promlem so it has only two factors (25 x 9) + (75 x 9)

The area of a mirror is 225 in.², its q The area of a mirror is 225 in.², it's width is 13 3/4. Will the mirror fit in a space that is 15" x 16" at exclamatio. Will the mirror fit in a space that is 15" x 16"?

Find the area of the rectangle 0.88 mi time for 1.07

How many tall cups of coffee will it take to equal the number of ounces in one venti