How to determine scores that have increased by 10% or more? what's the formula?

Fa bus driver leaves her first stop by 7: 00 a. m., her route will take less than 37 minutes. if she leaves after 7: 00 a. m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Y=x+2 4x+3y= -36 system of equation

Shirley spelled 12 of her 15 spelling words correctly on the test. what percentage did shirley get on the test?