1. -4/9(-7/9)=

2. 8/15(-2/3)=

3. 9/10 divided (-6/5)=

4. -4/11 divided 2/7=

i don’t understand how to do them. can anyone explain how to get the answer?

Compare the cost of the bike trips from the two companies shown.for both the cost in a linear function of the number of days which statements is true

Solve the system of equations. y=3x-1 and y=-2x+9. show work

$30 to spend on dinner tax and gratuity at mos restaurant rax is 6% and they give a 15% tip on the total bill after taxes thier dinner cost $21 which statement correctly explains wether andrew and kate have enough money to pay their bill