Which system of linear equations has an infinite number of solutions? a. 3 x + 8 y = -1
3x + 8y = 2
b. 3 x + 8 y = -1
-3x + 4y = -20
c. 3 x + 8 y = -1
-12x - 32y = 4
d. 3 x + 8 y = -1
-2x + y = 3

4. a spring scale is constructed so that each 0.10-n increment is separated by 0.50 cm. what spring constant is necessary for the scale to be accurate? -1.0n/cm -0.10n/cm -9.8 n/cm -0.20n/cm

If your annual gross income is $62,000 and you have one monthly car payment of $335 and a monthly student loan payment of $225, what is the maximum house payment you can afford. consider a standard 28% front-end ratio and a 36% back-end ratio. also, to complete your calculation, the annual property tax will be $3,600 and the annual homeowner's premium will be $360.

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?